{"id":231214,"date":"2026-03-18T15:01:44","date_gmt":"2026-03-18T14:01:44","guid":{"rendered":"https:\/\/sherpas.com\/blog\/?p=231214"},"modified":"2026-04-29T11:01:57","modified_gmt":"2026-04-29T09:01:57","slug":"sameliorer-en-calcul-mental","status":"publish","type":"post","link":"https:\/\/sherpas.com\/blog\/sameliorer-en-calcul-mental\/","title":{"rendered":"Nos techniques pour s&rsquo;am\u00e9liorer en calcul mental ! \ud83d\udcaa"},"content":{"rendered":"<section class=\"you-know\">\n                <div class=\"you-know__title\"><p class=\"p1\">\ud83e\udde0 \u00c0 retenir<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p class=\"p1\">\n<ul class=\"ul1\">\n<li class=\"li1\">On s&rsquo;am\u00e9liore en calcul mental avec la m\u00e9morisation des bases, comme les carr\u00e9s parfaits ou les identit\u00e9s remarquables.<\/li>\n<li class=\"li1\">On utilise des astuces simples pour calculer vite les multiplications ou les pourcentages.<\/li>\n<li class=\"li1\">La progression vient avec un entra\u00eenement r\u00e9gulier, sans toujours utiliser la calculatrice.<\/li>\n<\/ul>\n\n        <\/div>\n              <\/section>\n\n\n\n<p>Le calcul mental est une <strong>notion de maths indispensable <\/strong>tant dans le cadre scolaire que dans la vie de tous les jours. On est souvent tent\u00e9s de compter sur nos doigts, de vouloir attraper une calculatrice ou un t\u00e9l\u00e9phone pour essayer de s\u2019en sortir quand on nous rend la monnaie \u00e0 la boulangerie\u2026<\/p>\n\n\n\n<p>Rassure-toi,<strong>s\u2019am\u00e9liorer en calcul mental<\/strong>, c&rsquo;est possible. Si tu es ici pour conna\u00eetre les astuces \u00e0 ressortir lors d\u2019une interro, pour gagner du temps dans un devoir de math\u00e9matiques ou pour acheter tranquillement ta baguette, tu n&rsquo;as toqu\u00e9 \u00e0 la bonne porte ! \ud83d\ude09<\/p>\n\n\n\n<p>Et si tu veux te lib\u00e9rer de la d\u00e9pendance \u00e0 la calculatrice, fais appel \u00e0 l\u2019un de nos <a href=\"https:\/\/sherpas.com\/cours\/maths\">professeurs particulier de maths<\/a> et savoure la rapidit\u00e9 et l\u2019efficacit\u00e9 avec laquelle tu r\u00e9soudras les \u00e9nigmes au quotidien. \ud83d\ude80<\/p>\n\n\n<section class=\"read-also\">\n    <p class=\"read-also__title\">\u00c0 lire aussi<\/p>\n            <div class=\"read-also__list\">\n            <p>Tu veux savoir comment <a href=\"https:\/\/sherpas.com\/blog\/progresser-en-maths-en-prepa\/\" target=\"_blank\" rel=\"noopener\">progresser en maths durablement<\/a> ? \ud83d\udc48<\/p>\n\n        <\/div>\n    <\/section>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"lutilite-du-calcul-mental\">L&rsquo;utilit\u00e9 du calcul mental \ud83d\udc47<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"a-quoi-ca-sert-sur-le-papier\">\u00c0 quoi \u00e7a sert, sur le papier ? <\/h3>\n\n\n\n<p>Le calcul mental est un outil qui permet de donner un r\u00e9sultat sans trop r\u00e9fl\u00e9chir, et sollicite toujours des notions vues en cours. Il permet de<strong> cr\u00e9er des automatismes<\/strong>, comme en voiture avec un feu rouge : directement, on d\u00e9braye et on appuie sur le frein sans trop r\u00e9fl\u00e9chir.&nbsp;Enfin, pour ceux qui ont le permis&#8230;<\/p>\n\n\n\n<p>\ud83d\udc49 Le temps gagn\u00e9 par les automatismes du calcul mental te permet donc de<strong> te focaliser<\/strong> sur le calcul r\u00e9fl\u00e9chi ou la<strong> r\u00e9flexion plus pouss\u00e9e d&rsquo;un exercice<\/strong>.&nbsp;<\/p>\n\n\n\n<p>Tous les jours, nous faisons <strong>des op\u00e9rations simples<\/strong> (additions, soustractions, multiplications, divisions). Par exemple, pour aller acheter une baguette de pain, contr\u00f4ler la monnaie rendue, g\u00e9rer tes finances\u2026 On arrive \u00e0 avoir une pr\u00e9vision rapide et chiffr\u00e9e dans plein de situations diff\u00e9rentes.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"les-bienfaits-du-calcul-mental\">Les bienfaits du calcul mental&nbsp;<\/h3>\n\n\n\n<p>Le calcul mental est une sorte de<strong> gymnastique du cerveau<\/strong> :&nbsp;<strong> il sollicite la m\u00e9moire \u00e0 long terme.<\/strong> <\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><\/div>\n                        <div class=\"you-know__text\">\n            <p>D\u2019ailleurs, selon une \u00e9tude r\u00e9cente, il stimule une r\u00e9gion d\u00e9termin\u00e9e du cerveau (le cortex pr\u00e9frontal dorsolat\u00e9ral, pour \u00eatre pr\u00e9cis) et ainsi permet de lutter contre le stress et\/ou l\u2019anxi\u00e9t\u00e9. Et c\u2019est en pratiquant qu\u2019on peut s&rsquo;am\u00e9liorer en calcul mental.<\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<p>Bref, tu l\u2019auras compris cela ne sert pas que pour ton interro et\/ou DST de maths, mais pour la vie de tous les jours ! <\/p>\n\n\n<section class=\"push \">\n        <div >\n            \n                                                <div class=\"push__container  qcd\" data-target=\"_self\" data-qcd=\"aHR0cHM6Ly9zaGVycGFzLmNvbS9mdW5uZWwtc3R1ZGVudC1xdWFsaWZpY2F0aW9u\" data-banner=\"2\" data-name=\"CPM1 Maths\" style=\"background-color: #F3FBF7\" >\n                                                                        <div class=\"push__teachers\">\n    <div class=\"d-flex justify-content-center d-md-none\">\n        <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\" alt=\"Logo Sherpas\">\n    <\/div>\n    <div class=\"swiper\">\n        <div class=\"swiper-wrapper\">\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Louise2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Louise<\/p>                          <p class=\"push__teachers-school\">Mines ParisTech<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">24\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Nicolas2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Nicolas<\/p>                          <p class=\"push__teachers-school\">CentraleSup\u00e9lec<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">17\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Fabien2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Fabien<\/p>                          <p class=\"push__teachers-school\">T\u00e9l\u00e9com Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">20\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Cle\u0301mence2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Cl\u00e9mence<\/p>                          <p class=\"push__teachers-school\">HEC Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">21\u20ac\/h\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Bastien2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Bastien<\/p>                          <p class=\"push__teachers-school\">Polytechnique<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">26\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Pierre2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Pierre<\/p>                          <p class=\"push__teachers-school\">ESSEC<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">16\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Simon2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Simon<\/p>                          <p class=\"push__teachers-school\">4e ann\u00e9e de m\u00e9decine<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">26\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Jade2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Jade<\/p>                          <p class=\"push__teachers-school\">Sciences Po Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">21\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                    <\/div>\n    <\/div>\n<\/div>\n                                                    <div class=\"push__content\">\n                                                            <div  class=\"d-none d-md-block\" >\n                                    <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\"\n                                        alt=\"Logo Sherpas\">\n                                <\/div>\n                                                                                        <div class=\"push__title\"><p>Besoin d&rsquo;un <span style=\"color: #4cc583;\">prof particulier<\/span> de maths ? <span role=\"image\" aria-label=\"\u2728\">\u2728<\/span><\/p>\n<\/div>\n                                                                                        <div class=\"push__text\"><p>Nos Sherpas sont l\u00e0 pour t&rsquo;aider \u00e0 progresser et prendre confiance en toi !<\/p>\n<\/div>\n                                                        <div class=\"push__promo-button   \">\n                                                                                                    <div\n                                        class=\"btn btn-primary\"\n                                        style=\"color: ; border-color: ; background-color: \"\n\n                                    >\n                                        JE PRENDS UN COURS OFFERT !\n                                    <\/div>\n                                                            <\/div>\n                                                    <\/div>\n                                    <\/div>\n                                    <\/div>\n    <\/section>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"les-indispensables-pour-sameliorer-en-calcul-mental\">Les indispensables pour s\u2019am\u00e9liorer en calcul mental<\/h2>\n\n\n\n<p>Il faut d\u00e9j\u00e0 conna\u00eetre les r\u00e9sultats de certains calculs ou types d\u2019op\u00e9rations math\u00e9matiques dits \u201cde base\u201d. Tu as d\u00e9j\u00e0 d\u00fb les apprendre pour la plupart, mais un petit rappel ne peut pas faire de mal.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"les-identites-remarquables\"><a href=\"https:\/\/sherpas.com\/blog\/identite-remarquable\/\">Les identit\u00e9s remarquables<\/a> :&nbsp;<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>(a+b)\u00b2 = a\u00b2 + 2ab + b\u00b2<\/li>\n\n\n\n<li>(a-b)\u00b2 = a\u00b2 &#8211; 2ab + b\u00b2<\/li>\n\n\n\n<li>a\u00b2 &#8211; b\u00b2 = (a+b)(a-b)<\/li>\n\n\n\n<li>(-a-b)\u00b2 = (a+b)\u00b2<\/li>\n\n\n\n<li>(-a+b)\u00b2 = (a-b)\u00b2<\/li>\n\n\n\n<li>(a+b)\u00b3 = a\u00b3 + 3a\u00b2b + 3ab\u00b3 + b\u00b3 soit&nbsp; a\u00b3 + b\u00b3 + 3ab (a+b)<\/li>\n\n\n\n<li>(a-b)\u00b3 = a\u00b3 &#8211; 3a\u00b2b + 3ab\u00b3 &#8211; b\u00b3 soit&nbsp; a\u00b3 &#8211; b\u00b3 &#8211; 3ab (a-b)&nbsp;<\/li>\n\n\n\n<li>a\u00b3-b\u00b3 = (a-b)(a\u00b2 + ab + b\u00b2)<\/li>\n\n\n\n<li>a\u00b3+b\u00b3 = (a+b)(a\u00b2 &#8211; ab + b\u00b2)&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>\ud83d\udc49 Indispensables pour quiconque qui souhaiterait s\u2019am\u00e9liorer en calcul mental. Tu as d\u00fb, et dois probablement encore, les trouver dans tes DS.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"les-carres-parfaits\">Les carr\u00e9s parfaits \u2728<\/h3>\n\n\n\n<p>\ud83d\udc49 Indispensables pour pouvoir <strong>simplifier des expressions alg\u00e9briques<\/strong>. Mais pas que ! Cela t\u2019aidera pour <a href=\"https:\/\/sherpas.com\/blog\/comprendre-le-theoreme-de-pythagore\/\">appliquer le th\u00e9or\u00e8me de Pythagore<\/a> ou encore<strong> simplifier la valeur de la racine \u00e9vidente d\u2019une expression <\/strong>en passant par le discriminant (le fameux \u221a\u0394).<\/p>\n\n\n\n<p><strong>Carr\u00e9s parfaits jusqu\u2019\u00e0 20 :<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1\u00b2 = 1<\/li>\n\n\n\n<li>2\u00b2 = 4<\/li>\n\n\n\n<li>3\u00b2 = 9<\/li>\n\n\n\n<li>4\u00b2 = 16<\/li>\n\n\n\n<li>5\u00b2 = 25<\/li>\n\n\n\n<li>6\u00b2 = 36<\/li>\n\n\n\n<li>7\u00b2 = 49<\/li>\n\n\n\n<li>8\u00b2 = 64<\/li>\n\n\n\n<li>9\u00b2 = 81<\/li>\n\n\n\n<li>10\u00b2 = 100<\/li>\n\n\n\n<li>11\u00b2 = 121<\/li>\n\n\n\n<li>12\u00b2 = 144<\/li>\n\n\n\n<li>13\u00b2 = 169<\/li>\n\n\n\n<li>14\u00b2 = 196<\/li>\n\n\n\n<li>15\u00b2 = 225<\/li>\n\n\n\n<li>16\u00b2 = 256<\/li>\n\n\n\n<li>17\u00b2 = 289<\/li>\n\n\n\n<li>18\u00b2 = 324<\/li>\n\n\n\n<li>19\u00b2 = 361<\/li>\n\n\n\n<li>20\u00b2 = 400<\/li>\n<\/ul>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>\ud83d\udca1 Astuce de matheux<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p>Les tables des carr\u00e9s, cubes, etc. se retiennent comme les tables de multiplications apprises par les enfants \u00e0 l\u2019\u00e9cole, sous forme de jeu. M\u00eame maintenant, on peut encore <strong>en apprendre de fa\u00e7on ludique<\/strong>\u00a0!<\/p>\n\n        <\/div>\n              <\/section>\n\n\n<section class=\"relance\">\n        <div >\n                            <a target=\"_blank\" href=\"https:\/\/sherpas.com\/funnel-student-qualification\">\n                    <div class=\"relance__container\"\n                        >\n                        \n                                                        <picture>\n                            <source srcset=\"https:\/\/sherpas.com\/content\/uploads\/2023\/07\/relance-cours-particulier-4.jpg\" media=\"(min-width: 999px)\">\n                            <source srcset=\"https:\/\/sherpas.com\/content\/uploads\/2023\/07\/relance-cours-particulier-4.jpg\" media=\"(max-width: 999px)\">\n                                <img decoding=\"async\"\n                                    src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/07\/relance-cours-particulier-4.jpg\"\n                                    alt=\"Personne qui donne des cours particuliers\"\n                                >\n                            <\/picture>\n                                                <div class=\"relance__content\">\n                            \n                                <div class=\"relance__title\"> <p>Envie de devenir le meilleur en maths ? Fais appel \u00e0 l&rsquo;un de nos profs particuliers pour t&rsquo;aider !<\/p>\n<\/div>\n                                                        <button type=\"button\"\n                                    class=\"relance__button btn btn-white\">\n                                Le premier cours est offert !\n                            <\/button>\n                        <\/div>\n                    <\/div>\n                <\/a>\n                    <\/div>\n    <\/section>\n\n    \n\n\n<h2 class=\"wp-block-heading\" id=\"les-proprietes-sur-les-puissances\">Les propri\u00e9t\u00e9s sur les puissances&nbsp;<\/h2>\n\n\n\n<p>Elles sont tr\u00e8s utiles au coll\u00e8ge et en Seconde, mais aussi en Premi\u00e8re et en Terminale avec la <strong>fonction exponentielle.&nbsp;<\/strong><\/p>\n\n\n<section class=\"read-also\">\n    <p class=\"read-also__title\">\u00c0 lire aussi<\/p>\n            <div class=\"read-also__list\">\n            <p>On t&rsquo;en parle d&rsquo;ailleurs dans le <a href=\"https:\/\/sherpas.com\/blog\/programme-specialite-maths-premiere\/\" target=\"_blank\" rel=\"noopener\">programme de maths de premi\u00e8re<\/a> !<\/p>\n\n        <\/div>\n    <\/section>\n\n\n\n<p>\ud83d\udc49 En les connaissant par c\u0153ur, tu pourras <strong>trouver plus facilement le r\u00e9sultat d\u2019une fonction compos\u00e9e avec exponentielle<\/strong> (par exemple), sans avoir \u00e0 \u00e9crire toutes les \u00e9tapes de calcul. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"puissances-de-2\">Puissances de 2<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>2\u00b2 = 4<\/li>\n\n\n\n<li>2\u00b3 = 8<\/li>\n\n\n\n<li>2<sup>4<\/sup> = 16<\/li>\n\n\n\n<li>2<sup>5<\/sup> = 32<\/li>\n\n\n\n<li>2<sup>6<\/sup> = 64<\/li>\n\n\n\n<li>2<sup>7<\/sup> = 128<\/li>\n\n\n\n<li>2<sup>8<\/sup> = 256<\/li>\n\n\n\n<li>2<sup>9<\/sup>= 512<\/li>\n\n\n\n<li>2<sup>10<\/sup> = 1024<\/li>\n<\/ul>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>\ud83d\udca1 T&rsquo;as KPT\u00c9 ?<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p>Ca fait penser aux capacit\u00e9s de stockage des t\u00e9l\u00e9phones en Go (et oui les math\u00e9matiques sont partout \u2026)<\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"multiplication-par-0\">Multiplication par 0,\u2026<\/h3>\n\n\n\n<p>Cette formule permet de faciliter des calculs (notamment les pourcentages) et de <strong>visualiser plus ais\u00e9ment les op\u00e9rations.<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Multiplier par 0,8 revient \u00e0 multiplier par 8\/10, soit 4\/5. Donc \u00e0 multiplier par 4 et \u00e0 diviser par 5 ! <\/li>\n\n\n\n<li>Multiplier par 0,75 revient \u00e0 multiplier par \u00be&nbsp; donc \u00e0 multiplier par 3 et \u00e0 diviser par 4 ! <\/li>\n\n\n\n<li>Multiplier par 0,5 revient \u00e0 multiplier par \u00bd, donc \u00e0 diviser par 2<\/li>\n\n\n\n<li>Multiplier par 0,25 revient \u00e0 multiplier par \u00bc, donc \u00e0 diviser par 4<\/li>\n\n\n\n<li>Multiplier par 0,2 revient \u00e0 multiplier par \u2155, donc \u00e0 diviser par 5<\/li>\n\n\n\n<li>Multiplier par 0,125 revient \u00e0 multiplier par \u215b, donc \u00e0 diviser par 8<\/li>\n\n\n\n<li>Multiplier par 0,1 revient \u00e0 multiplier par 1\/10 et donc \u00e0 diviser par 10. <\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"les-nombres-premiers\">Les nombres premiers<\/h3>\n\n\n\n<p>Un \u201cnombre premier\u201d est un entier naturel qui n\u2019est <strong>divisible que par 1 et lui-m\u00eame.&nbsp;<\/strong><\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>C&rsquo;est lesquels ? \ud83d\udc47<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p>2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197 et 199.<\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<p>\ud83d\udc49&nbsp; Pour s\u2019am\u00e9liorer en calcul mental, mieux vaut les <a href=\"https:\/\/sherpas.com\/blog\/comment-apprendre-par-coeur-rapidement\/\">apprendre par c\u0153ur<\/a>. En plus, \u00e7a te facilitera la vie dans avec les fractions : plus besoin de perdre du temps \u00e0 se demander si elles sont r\u00e9ductibles ou non !&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"trigonometrie-les-valeurs-remarquables-maths-physique\">Trigonom\u00e9trie : les valeurs remarquables (Maths\/Physique) \ud83d\udccf<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"cosinus\">Cosinus&nbsp;<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cos (0\u00b0) = 1<\/li>\n\n\n\n<li>Cos (30\u00b0) = \u221a3\/2<\/li>\n\n\n\n<li>Cos (45\u00b0) = \u221a2\/2<\/li>\n\n\n\n<li>Cos (60\u00b0) = 1\/2<\/li>\n\n\n\n<li>Cos (90\u00b0) = 0<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"sinus\">Sinus<strong>&nbsp;<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sin (0\u00b0) = 0<\/li>\n\n\n\n<li>Sin (30\u00b0) = 1\/2<\/li>\n\n\n\n<li>Sin (45\u00b0) = \u221a2\/2<\/li>\n\n\n\n<li>Sin (60\u00b0) = \u221a3\/2<\/li>\n\n\n\n<li>Sin (90\u00b0) = 1<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"tangente\">Tangente<strong>&nbsp;<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tan (0\u00b0) = 0<\/li>\n\n\n\n<li>Tan (30\u00b0) = \u221a3\/3&nbsp;<\/li>\n\n\n\n<li>Tan (45\u00b0) = 1<\/li>\n\n\n\n<li>Tan (60\u00b0) = \u221a3<\/li>\n\n\n\n<li>Tan (90\u00b0)&nbsp; n\u2019existe pas<\/li>\n<\/ul>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><\/div>\n                        <div class=\"you-know__text\">\n            <p><span style=\"font-weight: 400;\">Retiens \u00e9galement la valeur des angles en radian ! \u00c7a sera utile pour les projet\u00e9s orthogonaux des forces dans un rep\u00e8re en physique.<\/span><\/p>\n<p>&nbsp;<\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<p>\ud83d\udc49 \u00c7a te permet de calculer la valeur d\u2019une expression sans avoir besoin de sortir la calculatrice.<\/p>\n\n\n\n<p>Pour les apprendre <strong>tu peux t\u2019aider du cercle trigonom\u00e9trique<\/strong> : en visualisant, tu retiendras mieux.&nbsp;&nbsp;<\/p>\n\n\n<section class=\"push \">\n        <div >\n            \n                                                <div class=\"push__container  qcd\" data-target=\"_self\" data-qcd=\"aHR0cHM6Ly9zaGVycGFzLmNvbS9mdW5uZWwtc3R1ZGVudC1xdWFsaWZpY2F0aW9u\" data-banner=\"2\" data-name=\"Cours part&amp;rsquo; global #1 = CPG1\" style=\"background-color: #F3FBF7\" >\n                                                                        <div class=\"push__teachers\">\n    <div class=\"d-flex justify-content-center d-md-none\">\n        <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\" alt=\"Logo Sherpas\">\n    <\/div>\n    <div class=\"swiper\">\n        <div class=\"swiper-wrapper\">\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Hugo2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Hugo<\/p>                          <p class=\"push__teachers-school\">Insa Lyon<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">16\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Jade2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Jade<\/p>                          <p class=\"push__teachers-school\">Sciences Po Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">21\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Sophie2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Sophie<\/p>                          <p class=\"push__teachers-school\">Sciences Po Bordeaux<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">12\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Emma2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Emma<\/p>                          <p class=\"push__teachers-school\">Dauphine<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">15\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Margot2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Margot<\/p>                          <p class=\"push__teachers-school\">Arts et M\u00e9tiers ParisTech<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">22\u20ac\/h\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Martin2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Martin<\/p>                          <p class=\"push__teachers-school\">HEC Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">23\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Agathe2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Agathe<\/p>                          <p class=\"push__teachers-school\">ENS Lyon<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">19\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Fabien2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Fabien<\/p>                          <p class=\"push__teachers-school\">T\u00e9l\u00e9com Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">20\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                    <\/div>\n    <\/div>\n<\/div>\n                                                    <div class=\"push__content\">\n                                                            <div  class=\"d-none d-md-block\" >\n                                    <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\"\n                                        alt=\"Logo Sherpas\">\n                                <\/div>\n                                                                                        <div class=\"push__title\"><p>Ton premier cours particulier est offert ! <span role=\"img\" aria-label=\"\ud83c\udf81\">\ud83c\udf81<\/span><!-- notionvc: 91b6b7d7-50f2-46f4-ae1f-ecbabe834aad --><\/p>\n<\/div>\n                                                                                        <div class=\"push__text\"><p>Nos profs sont pass\u00e9s par les meilleures \u00e9coles et universit\u00e9s.<!-- notionvc: 21bb66b6-b36d-4ce8-8950-173722d75a1e --><\/p>\n<p>&nbsp;<\/p>\n<\/div>\n                                                        <div class=\"push__promo-button   \">\n                                                                                                    <div\n                                        class=\"btn btn-primary\"\n                                        style=\"color: #ffffff; border-color: ; background-color: \"\n\n                                    >\n                                        J&rsquo;EN PROFITE MAINTENANT !\n                                    <\/div>\n                                                            <\/div>\n                                                    <\/div>\n                                    <\/div>\n                                    <\/div>\n    <\/section>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"les-pourcentages\">Les pourcentages \ud83d\udcaf<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"augmentation-dun-prix-de-t\">Augmentation d\u2019un prix de t%<\/h3>\n\n\n\n<p>\ud83d\udc49 Utile pour calculer rapidement le montant d\u2019un taux d\u2019int\u00e9r\u00eat lors d\u2019un rendez-vous bancaire par exemple.&nbsp;<\/p>\n\n\n\n<p class=\"has-text-align-center\"><strong>Formule : Prix*(1 + t%)<\/strong><\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>Exemple \ud83d\udc47<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p>En souscrivant \u00e0 un cr\u00e9dit de 200\u20ac dont le taux d\u2019int\u00e9r\u00eat est de 10% par an, quel sera le montant du remboursement \u00e0 la fin de l\u2019ann\u00e9e ?<\/p>\n<p><em><span style=\"font-weight: 400\">\ud83d\udc49 On a : 200*(1 + 10\/100)\u00a0<\/span><\/em><\/p>\n<p><em><span style=\"font-weight: 400\">Convertis en d\u00e9cimal le pourcentage : 0,1 auquel on ajoute 1.\u00a0<\/span><\/em><\/p>\n<p><em><span style=\"font-weight: 400\">\ud83d\udc49 On obtient alors 1,1.<\/span><\/em><\/p>\n<p><em><span style=\"font-weight: 400\">Il suffit de multiplier 200 par 1,1 autrement dit 200*1 + 200*0,1<\/span><\/em><\/p>\n<p><em><span style=\"font-weight: 400\">C\u2019est l\u00e0 o\u00f9 les multiplications par 0,&#8230; te seront particuli\u00e8rement utiles ! En effet, 200*0,1 revient \u00e0 diviser par 10. Donc cette op\u00e9ration donne 20. Enfin, on l\u2019ajoute \u00e0 200.\u00a0<\/span><\/em><\/p>\n<p><em><span style=\"font-weight: 400\">R\u00e9ponse : On obtient ainsi le r\u00e9sultat de 220\u20ac. \ud83d\ude0a<\/span><\/em><\/p>\n<p>&nbsp;<\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"diminution-dun-prix-de-t\">Diminution d\u2019un prix de t%<\/h3>\n\n\n\n<p>\ud83d\udc49 Tr\u00e8s utile pour avoir une id\u00e9e du prix d\u2019un produit (lors des soldes par exemple).<\/p>\n\n\n\n<p class=\"has-text-align-center\"><strong>Formule : Prix*(1 &#8211; t%)<\/strong><\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>Exemple avec m\u00e9thode \ud83d\udc47<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p><span style=\"font-weight: 400;\">Imagine devoir acheter un pull \u00e0 44 \u20ac, avec une remise de 25% en caisse.\u00a0<\/span><\/p>\n<p><em><span style=\"font-weight: 400;\">\ud83d\udc49 On a : 44*(1 &#8211; 25\/100)\u00a0<\/span><\/em><\/p>\n<p><em><span style=\"font-weight: 400;\">Convertis en d\u00e9cimal le pourcentage : 0,25 puis soustrait le \u00e0 1.\u00a0<\/span><\/em><\/p>\n<p><em><span style=\"font-weight: 400;\">On obtient alors 0,75.<\/span><\/em><\/p>\n<p><em><span style=\"font-weight: 400;\">Il suffit de multiplier 44 par 0,75 :\u00a0<\/span><\/em><\/p>\n<p><em><span style=\"font-weight: 400;\">L\u00e0 encore les multiplications par 0,&#8230; te seront particuli\u00e8rement utiles. En effet, on a vu que 0,75 revient \u00e0 multiplier par 3 puis diviser par 4 (soit multiplier par \u00be)\u00a0<\/span><\/em><\/p>\n<p><em><span style=\"font-weight: 400;\">Donc : 44\/4 = 11, ue l&rsquo;on multiplie par 3.<\/span><\/em><\/p>\n<p><em><span style=\"font-weight: 400;\">\ud83d\udc49 R\u00e9ponse : On obtient ainsi le r\u00e9sultat de 33\u20ac pour ce produit. <\/span><\/em><\/p>\n<p>&nbsp;<\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<p>\ud83d\udc49 Quand le prix d\u2019un produit est avec des d\u00e9cimales, \u00e0 moins de vouloir le r\u00e9sultat au centime pr\u00e8s, tu peux d\u00e9j\u00e0 te <strong>faire une id\u00e9e du prix \u00e0 payer pour ton produit<\/strong>, en arrondissant d\u00e8s le d\u00e9part ce prix.<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>\ud83d\udca1 Astuce de matheux<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p>Pour les pourcentages tels que 25%, 50%, etc. tu peux obtenir le r\u00e9sultat plus rapidement en sachant <strong>d\u00e8s le d\u00e9part que tu dois ajouter\/soustraire au prix de base<\/strong>, sa moiti\u00e9 (dans le cas de 50%) ou son quart (25%).<\/p>\n\n        <\/div>\n              <\/section>\n\n\n<section class=\"read-also\">\n    <p class=\"read-also__title\">\u00c0 lire aussi<\/p>\n            <div class=\"read-also__list\">\n            <p><a href=\"https:\/\/sherpas.com\/blog\/vaincre-la-peur-des-maths\/\" target=\"_blank\" rel=\"noopener\">La peur des maths<\/a>, c&rsquo;est une vraie maladie ! On la soigne ensemble ? \ud83d\ude09<\/p>\n\n        <\/div>\n    <\/section>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"multiplication-par-11-la-methode\">Multiplication par 11 : la m\u00e9thode&nbsp;! <\/h2>\n\n\n\n<p>\ud83d\udc49 Les \u00e9tapes de calcul, ici, peuvent te paraitre un peu compliqu\u00e9es. Mais pas de panique, car une fois que tu auras compris le principe, tu ne mettras que quelques secondes \u00e0 peine \u00e0 trouver le r\u00e9sultat.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"multiplication-dun-nombre-entre-10-et-99-par-11\">Multiplication d\u2019un nombre entre 10 et 99 par 11&nbsp;<\/h3>\n\n\n\n<p>C&rsquo;est simple. On prend le nombre multipli\u00e9 par 11 et on espace les deux chiffres qui le composent. <strong>On effectue la somme de ces deux chiffres<\/strong> puis on le place entre les deux. Et hop, voil\u00e0 le r\u00e9sultat !<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>\u2705 Prenons un exemple : 53*11<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p><em>5+3 = 8<\/em><\/p>\n<p>\ud83d\udc49 Le r\u00e9sultat est 583. Easy !<\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<p>\u26a0\ufe0f Dans le cas o\u00f9 la somme des deux chiffres est sup\u00e9rieure ou \u00e9gale \u00e0 10, pas de souci, <strong>on ajoute la retenue au premier chiffre<\/strong>.&nbsp;<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>\u2705 Prenons \u00e0 nouveau un exemple : 67*11<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p><em>6+7 = 13<\/em><\/p>\n<p><em>On devrait avoir : 637 et une retenue chez les centaines. On ajoute la retenue, ici au chiffre 6 : 6+1 = 7.\u00a0<\/em><\/p>\n<p>\ud83d\udc49 Donc le r\u00e9sultat est 737.<\/p>\n<p>&nbsp;<\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"multiplication-dun-nombre-superieur-ou-egal-a-100-par-11\">Multiplication d\u2019un nombre sup\u00e9rieur ou \u00e9gal \u00e0 100 par 11<\/h3>\n\n\n\n<p>On prend le nombre multipli\u00e9 par 11 et<strong>on espace les deux chiffres, situ\u00e9s aux extr\u00e9mit\u00e9s, qui le composent<\/strong>. Puis on additionne le chiffre des unit\u00e9s et celui des dizaines et celui des dizaines et des centaines. On place ces deux chiffres entre ceux \u201cespac\u00e9s\u201d.<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>\u2705 Prenons un exemple pour bien comprendre : 253*11<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p><em>\ud83d\udc49 On place le chiffre 2 et 3 (espac\u00e9s mentalement) apr\u00e8s, on a 3+5=8 et 2+5=7<\/em><\/p>\n<p>On obtient comme r\u00e9sultat : 2783.<\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<p>Si tu n\u2019y crois pas, alors tu peux v\u00e9rifier avec ton t\u00e9l\u00e9phone.&nbsp;<\/p>\n\n\n\n<p>\u26a0\ufe0f Dans le cas o\u00f9 la somme des deux chiffres est sup\u00e9rieure ou \u00e9gale \u00e0 10, pas de souci, on ajoute la retenue au premier chiffre.&nbsp;<\/p>\n\n\n<section class=\"push \">\n        <div >\n            \n                                                <div class=\"push__container  qcd\" data-target=\"_self\" data-qcd=\"aHR0cHM6Ly9zaGVycGFzLmNvbS9mdW5uZWwtc3R1ZGVudC1xdWFsaWZpY2F0aW9u\" data-banner=\"2\" data-name=\"CPM2 Maths\" style=\"background-color: #F3FBF7\" >\n                                                                        <div class=\"push__teachers\">\n    <div class=\"d-flex justify-content-center d-md-none\">\n        <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\" alt=\"Logo Sherpas\">\n    <\/div>\n    <div class=\"swiper\">\n        <div class=\"swiper-wrapper\">\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/David2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">David<\/p>                          <p class=\"push__teachers-school\">EDHEC<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">25\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Cle\u0301mence2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Cl\u00e9mence<\/p>                          <p class=\"push__teachers-school\">HEC Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">21\u20ac\/h\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Pierre2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Pierre<\/p>                          <p class=\"push__teachers-school\">ESSEC<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">16\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Martin2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Martin<\/p>                          <p class=\"push__teachers-school\">HEC Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">23\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Fanny2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Fanny<\/p>                          <p class=\"push__teachers-school\">Ponts ParisTech<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">19\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Antoine2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Antoine<\/p>                          <p class=\"push__teachers-school\">Sciences Po Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">18\u20ac\/h\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Nicolas2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Nicolas<\/p>                          <p class=\"push__teachers-school\">CentraleSup\u00e9lec<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">17\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Alma2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Alma<\/p>                          <p class=\"push__teachers-school\">ENS Paris-Saclay<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">24\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                    <\/div>\n    <\/div>\n<\/div>\n                                                    <div class=\"push__content\">\n                                                            <div  class=\"d-none d-md-block\" >\n                                    <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\"\n                                        alt=\"Logo Sherpas\">\n                                <\/div>\n                                                                                        <div class=\"push__title\"><p>Ton premier <span style=\"color: #4cc483;\">cours particulier<\/span> de maths est <span style=\"color: #4cc483;\">offert<\/span> ! <span role=\"image\" aria-label=\"\ud83c\udf81\">\ud83c\udf81<\/span><\/p>\n<\/div>\n                                                                                        <div class=\"push__text\"><p>Tous nos profs sont pass\u00e9s par les meilleures \u00e9coles de France !<\/p>\n<\/div>\n                                                        <div class=\"push__promo-button   \">\n                                                                                                    <div\n                                        class=\"btn btn-primary\"\n                                        style=\"color: ; border-color: ; background-color: \"\n\n                                    >\n                                        J\u2019EN PROFITE !\n                                    <\/div>\n                                                            <\/div>\n                                                    <\/div>\n                                    <\/div>\n                                    <\/div>\n    <\/section>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"multiplication-de-deux-nombres-quelconques-le-hack-ultime\">Multiplication de deux nombres quelconques : le hack ultime \ud83c\udfaf<\/h2>\n\n\n\n<p>C\u2019est la fa\u00e7on ultime d\u2019am\u00e9liorer son calcul mental.<\/p>\n\n\n\n<p class=\"has-text-align-center\"><strong>53*42 alors \u2026 ? On ne va pas se mentir, \u00e7a parait assez impressionnant.<\/strong><\/p>\n\n\n\n<p><strong>Voil\u00e0 la m\u00e9thode \ud83d\udc47<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Multiplier le chiffre des unit\u00e9s de l\u2019un par celui de l\u2019autre : 3 x 2 = 6<\/li>\n<\/ol>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><\/div>\n                        <div class=\"you-know__text\">\n            <p>On peut se l\u2019\u00e9crire mentalement (ce sera le chiffre des unit\u00e9s du r\u00e9sultat final).<\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>Produit crois\u00e9 <\/strong>(multiplier le chiffre des unit\u00e9s de l\u2019un par celui des dizaines de l\u2019autre et inversement) : <em>3 x 4 = 12 et 5 x 2 = 10<\/em>&nbsp;<\/li>\n\n\n\n<li>Faire la somme de ces deux produits : <em>12 + 10 = 22<\/em><\/li>\n\n\n\n<li>On pose alors <strong>le chiffre des unit\u00e9s du r\u00e9sultat obtenu <\/strong>\u00e0 l\u2019\u00e9tape pr\u00e9c\u00e9dente et l\u2019on garde le chiffre des dizaines en retenue. Ici, on \u201c\u00e9crit\u201d mentalement <em>2<\/em> (comme chiffre des dizaines du r\u00e9sultat final) et on retient 2.<\/li>\n\n\n\n<li>Multiplier les deux chiffres des dizaines et<strong> y ajouter la retenue<\/strong> : <em>5 x 4 = 20 et 20 + 2 = 22<\/em>. On l\u2019\u00e9crit mentalement devant les deux chiffres trouv\u00e9s pr\u00e9c\u00e9demment. <\/li>\n<\/ol>\n\n\n\n<p>\ud83d\udc49 R\u00e9ponse : 2226 \u2705<\/p>\n\n\n\n<p>Cela peut te sembler un peu <strong>long et fastidieux de calculer tout mentalement<\/strong>. Pas de panique, avec un peu d\u2019entra\u00eenement, on peut am\u00e9liorer son calcul mental : tu vas donc vite progresser. Tu mettras moins de temps \u00e0 effectuer les op\u00e9rations pour arriver au r\u00e9sultat qu\u2019\u00e0 lire la m\u00e9thode \ud83d\ude09<\/p>\n\n\n<section class=\"relance\">\n        <div >\n                            <a target=\"_blank\" href=\"https:\/\/sherpas.com\/blog\/guide-memorisation\/\">\n                    <div class=\"relance__container\"\n                        >\n                        \n                                                        <picture>\n                            <source srcset=\"https:\/\/sherpas.com\/content\/uploads\/2020\/12\/memoire.png\" media=\"(min-width: 999px)\">\n                            <source srcset=\"https:\/\/sherpas.com\/content\/uploads\/2020\/12\/memoire.png\" media=\"(max-width: 999px)\">\n                                <img decoding=\"async\"\n                                    src=\"https:\/\/sherpas.com\/content\/uploads\/2020\/12\/memoire.png\"\n                                    alt=\"m\u00e9moire\"\n                                >\n                            <\/picture>\n                                                <div class=\"relance__content\">\n                            \n                                <div class=\"relance__title\"> <p>Et pour retenir toutes ces belles formules, on a pleeeeein de super m\u00e9thodes dans notre guide de la m\u00e9moire ! T\u00e9l\u00e9charge le vite pour le d\u00e9couvrir \ud83d\udcab<\/p>\n<\/div>\n                                                        <button type=\"button\"\n                                    class=\"relance__button btn btn-white\">\n                                CLIQUE ICI \n                            <\/button>\n                        <\/div>\n                    <\/div>\n                <\/a>\n                    <\/div>\n    <\/section>\n\n    \n\n\n<h2 class=\"wp-block-heading\" id=\"sameliorer-avec-de-lentrainement\">S\u2019am\u00e9liorer avec de l\u2019entra\u00eenement \ud83c\udfcb\ufe0f\u200d\u2640\ufe0f<\/h2>\n\n\n\n<p>Le probl\u00e8me est qu\u2019aujourd\u2019hui, nous avons tous notre calculatrice sur notre t\u00e9l\u00e9phone. On la laisse, de ce fait, faire le calcul \u00e0 notre place, et on ne prend plus la peine de calculer de t\u00eate. Mais d\u00e9sormais, tu as toutes les clefs en main pour \u00e9viter de la sortir \u00e0 la moindre petite op\u00e9ration ! \ud83d\udc4b<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p>M\u00eame mieux, \u00e0 force de r\u00e9aliser de petits calculs de t\u00eate dans des exercices, lors d\u2019un DST, tu gagneras du temps par les automatismes d\u00e9j\u00e0 ancr\u00e9s. <strong>Tu te concentreras alors plus facilement et plus rapidement sur la partie r\u00e9flexion<\/strong>. Les touches de ta calculatrice ne te serviront plus qu\u2019\u00e0 taper tes grands calculs et non plus \u00e0 v\u00e9rifier que 12*12 = 144 (oui oui, on l\u2019a tous fait).&nbsp;&nbsp;<\/p>\n<\/div>\n<\/div>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><\/div>\n                        <div class=\"you-know__text\">\n            <p>Pour t\u2019entra\u00eener et progresser, lorsque tu fais tes exercices de maths, <strong>n\u2019oublie jamais de commencer par apprendre ton cours<\/strong> et notamment les propri\u00e9t\u00e9s de calculs (puissances, etc.).<\/p>\n\n        <\/div>\n              <\/section>\n\n\n<section class=\"relance\">\n        <div >\n                        <div class=\"cursor-pointer\" data-toggle=\"modal\" data-target=\"#relance-modal-4iYpgp04ZlA\">\n                <div class=\"relance__container\"\n                    >\n                                                                             <picture>\n                            <source srcset=\"https:\/\/sherpas.com\/content\/uploads\/2022\/01\/MiniatV3.png\" media=\"(min-width: 999px)\">\n                            <source srcset=\"https:\/\/sherpas.com\/content\/uploads\/2022\/01\/MiniatV3.png\" media=\"(max-width: 999px)\">\n                                <img decoding=\"async\"\n                                    src=\"https:\/\/sherpas.com\/content\/uploads\/2022\/01\/MiniatV3.png\"\n                                    alt=\"comment apprendre plus vite\"\n                                >\n                            <\/picture>\n                                        <div class=\"relance__content\">\n                                                <div class=\"relance__title\"> <p>En plus, on t&rsquo;a fait une vid\u00e9o pour apprendre tes cours 3x plus vite ! Truc de fou \u00e0 voir d&rsquo;urgence\ud83d\udc47<\/p>\n<\/div>\n                                                <button type=\"button\"\n                                class=\"relance__button btn btn-white\">\n                            <svg>\n                                <use\n                                    xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#play\"\/>\n                            <\/svg>\n                            <span>A DECOUVRIR ICI <\/span>\n                        <\/button>\n                    <\/div>\n                <\/div>\n            <\/div>\n                    <\/div>\n    <\/section>\n\n            <div class=\"modal-video modal fade\" id=\"relance-modal-4iYpgp04ZlA\" tabindex=\"-1\" aria-hidden=\"true\">\n            <div class=\"modal-dialog\">\n                <div class=\"modal-content\">\n                    <iframe\n                        src=\"https:\/\/www.youtube.com\/embed\/4iYpgp04ZlA\"\n                        title=\"YouTube video player\" frameborder=\"0\"\n                        allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\"\n                        allowfullscreen\n                    ><\/iframe>\n                <\/div>\n            <\/div>\n        <\/div>\n    \n\n\n<h2 class=\"wp-block-heading\" id=\"le-last-but-not-least\">Le \u201c<em>last but not least<\/em>\u201d \ud83d\udc47<\/h2>\n\n\n\n<p>Pas besoin de compter sur tes doigts en cachette, ma\u00eetrise le calcul mental avec l&rsquo;aide d&rsquo;un <strong><a href=\"https:\/\/sherpas.com\/cours\/maths\/online\">prof particulier de maths en ligne<\/a><\/strong> et deviens un as des chiffres, pr\u00eat \u00e0 relever tous les d\u00e9fis math\u00e9matiques avec confiance et aisance. \ud83d\ude80<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"la-visualisation\"><strong>La visualisation \ud83d\udc41<\/strong><\/h3>\n\n\n\n<p>\ud83d\udc49 L\u2019une des techniques pour bien r\u00e9aliser un calcul mental est, pour la plupart des personnes, la visualisation mentale du calcul.&nbsp;<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>Le pi\u00e8ge des retenues<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p><em>9000-4687 = ?<\/em><\/p>\n<p><span style=\"font-weight: 400\">Astuce : calculer 8999 &#8211; 4687 et rajouter +1 au r\u00e9sultat obtenu.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">\ud83d\udc49 Soit 4312 + 1 = 4313 \ud83e\udd1d<\/span><\/p>\n<p>&nbsp;<\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"apprendre-des-ordres-de-grandeur\"><strong>Apprendre des ordres de grandeur<\/strong><\/h3>\n\n\n\n<p>Pi ? 3,1415926535\u2026 (on pourrait presque tenter d\u2019apprendre les 10 000 premi\u00e8res d\u00e9cimales de Pi \ud83d\ude36)<\/p>\n\n\n\n<p>\ud83d\udc49 Conna\u00eetre des ordres de grandeur permet de <strong>te faire une id\u00e9e approximative du r\u00e9sultat.&nbsp;<\/strong><\/p>\n\n\n\n<p>Contrairement \u00e0 la physique, o\u00f9 il est souvent plus facile de voir une incoh\u00e9rence dans ta r\u00e9ponse, en maths \u00e7a reste plus compliqu\u00e9.<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>Les ordres de grandeur \u00e0 conna\u00eetre en math\u00e9matiques (peu importe ton niveau)<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <ul>\n<li>Pi = 3,14<\/li>\n<li>\u03a6 [nombre d\u2019or] = 1,618<\/li>\n<li>\u221a2 = 1,41<\/li>\n<li>\u221a3 = 1,73<\/li>\n<li>\u221a5 = 2,24<\/li>\n<\/ul>\n\n        <\/div>\n              <\/section>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"conversion-dune-unite-a-une-autre\"><strong>Conversion (d\u2019une unit\u00e9 \u00e0 une autre)<\/strong><\/h3>\n\n\n\n<p>\ud83d\udc49&nbsp; Il est important, pour avoir une fluidit\u00e9 dans les calculs, de conna\u00eetre les ordres de grandeur des mesures (comment passer de l\u2019une \u00e0 l\u2019autre par un rapport de puissance de 10). Les exercices (notamment en physique), n\u00e9cessitent des conversions entre les unit\u00e9s du syst\u00e8me international.&nbsp;<\/p>\n\n\n\n<p>\u2705 L en m\u00b3, Giga en kilo, kilom\u00e8tres par heure en m\u00e8tres par seconde, \u2026<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"les-regroupements-astucieux\"><strong>Les regroupements astucieux \ud83d\ude0c<\/strong><\/h3>\n\n\n\n<p>La plupart du temps, les personnes qui arrivent \u00e0 calculer rapidement de t\u00eate, en plus d\u2019avoir des automatismes, font des regroupements astucieux d\u2019op\u00e9rations. \u00c7a fonctionne particuli\u00e8rement bien dans le cas des additions.<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>\u2705 Exemple<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p><em>Si tu es en train de faire tes courses, que tu souhaites avoir une id\u00e9e du prix que tu vas payer, et savoir combien tu peux encore d\u00e9penser : 9,50 \u20ac + 3,99 \u20ac + 10,00 \u20ac + 3,50 \u20ac<\/em><\/p>\n<p>\ud83d\udc49 Typiquement, il convient de calculer tout d\u2019abord 9,50 + 3,50 = 13 \u20ac puis de faire l\u2019addition avec les deux autres.<\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"le-calcul-mental-na-plus-aucun-secret-pour-toi\">Le calcul mental n\u2019a plus aucun secret pour toi<\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p>\u00c7a y est,<strong>tu sais jongler avec les nombres<\/strong> !<\/p>\n<\/div>\n<\/div>\n\n\n\n<p>Tu peux d\u2019ores et d\u00e9j\u00e0 commencer \u00e0 <strong>t\u2019entra\u00eener en faisant des exercices<\/strong> ! Si tu sais que tu vas te faire interroger sur un certain type de calcul prochainement, tente d\u2019<strong>imaginer le type d\u2019op\u00e9ration qui risque de t\u2019\u00eatre donn\u00e9<\/strong>, en parall\u00e8le d\u2019apprendre ton cours (propri\u00e9t\u00e9s de calcul,&#8230;).&nbsp;<\/p>\n\n\n\n<p>Tu peux demander \u00e0 quelqu\u2019un de <strong>te donner des op\u00e9rations pour t\u2019entra\u00eener et le faire de fa\u00e7on ludique <\/strong>(il existe aussi des jeux en ligne !). <\/p>\n\n\n<section class=\"faq\">\n    <div class=\"container\" itemscope itemtype=\"http:\/\/schema.org\/FAQPage\">\n        <div class=\"faq__title\">\n                        <h2 id=\"%e2%81%89-faq\">\u2049\ufe0f FAQ<\/h2>\n                    <\/div>\n         <div class=\"faq__questions\">\n                                                                             <div class=\"faq__questions--item \" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n                <div class=\"faq__questions--title  collapsed\">\n                    <p class=\"h4\" itemprop=\"name\">Pourquoi est-ce si utile au quotidien ?<\/p>\n                    <svg>\n                        <use\n                        xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#chevron-right\"\/>\n                    <\/svg>\n                <\/div>\n                <div class=\"faq__questions--content\" style=\"max-height: 0px\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\">\n                    <div itemprop=\"text\"><p class=\"p1\">Le calcul mental t\u2019aide aussi dans la vie de tous les jours : v\u00e9rifier une monnaie, estimer une r\u00e9duction, g\u00e9rer un budget ou contr\u00f4ler rapidement un r\u00e9sultat. Bref, c\u2019est un vrai gain de temps, et pas uniquement le jour d\u2019un contr\u00f4le.<\/p>\n<\/div>\n                <\/div>\n             <\/div>\n                                                                 <div class=\"faq__questions--item \" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n                <div class=\"faq__questions--title  collapsed\">\n                    <p class=\"h4\" itemprop=\"name\">Est-ce que tout le monde peut progresser en calcul mental ?<\/p>\n                    <svg>\n                        <use\n                        xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#chevron-right\"\/>\n                    <\/svg>\n                <\/div>\n                <div class=\"faq__questions--content\" style=\"max-height: 0px\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\">\n                    <div itemprop=\"text\"><p class=\"p1\">Oui, clairement ! Contrairement \u00e0 ce qu\u2019on pourrait croire, ce n\u2019est pas r\u00e9serv\u00e9 \u00e0 quelques g\u00e9nies des nombres. C\u2019est surtout une question d\u2019habitude, de m\u00e9thode et d\u2019entra\u00eenement. Plus tu pratiques, plus tu d\u00e9veloppes des automatismes, et plus les calculs deviennent rapides.<\/p>\n<\/div>\n                <\/div>\n             <\/div>\n                                                                 <div class=\"faq__questions--item \" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n                <div class=\"faq__questions--title  collapsed\">\n                    <p class=\"h4\" itemprop=\"name\">Faut-il apprendre des formules par c\u0153ur pour s\u2019am\u00e9liorer ?<\/p>\n                    <svg>\n                        <use\n                        xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#chevron-right\"\/>\n                    <\/svg>\n                <\/div>\n                <div class=\"faq__questions--content\" style=\"max-height: 0px\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\">\n                    <div itemprop=\"text\"><p class=\"p1\">Oui, certaines bases sont vraiment indispensables. Les carr\u00e9s parfaits, les identit\u00e9s remarquables, les puissances ou encore quelques pourcentages classiques te feront gagner un temps pr\u00e9cieux. L\u2019id\u00e9e n\u2019est pas d\u2019apprendre tout et n\u2019importe quoi, mais de retenir les r\u00e9sultats qui reviennent souvent.<\/p>\n<\/div>\n                <\/div>\n             <\/div>\n                                                                 <div class=\"faq__questions--item \" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n                <div class=\"faq__questions--title  collapsed\">\n                    <p class=\"h4\" itemprop=\"name\">Comment faire pour retenir plus facilement les calculs de base ?<\/p>\n                    <svg>\n                        <use\n                        xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#chevron-right\"\/>\n                    <\/svg>\n                <\/div>\n                <div class=\"faq__questions--content\" style=\"max-height: 0px\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\">\n                    <div itemprop=\"text\"><p class=\"p1\">Le mieux, c\u2019est de les revoir souvent et de les manipuler r\u00e9guli\u00e8rement. Tu peux les \u00e9crire, les r\u00e9citer, t\u2019entra\u00eener sous forme de petits jeux ou essayer de les r\u00e9utiliser dans des exercices. Comme pour les tables de multiplication, c\u2019est la r\u00e9p\u00e9tition qui finit par faire la diff\u00e9rence.<\/p>\n<\/div>\n                <\/div>\n             <\/div>\n                                                                 <div class=\"faq__questions--item \" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n                <div class=\"faq__questions--title  collapsed\">\n                    <p class=\"h4\" itemprop=\"name\">Est-ce qu\u2019il faut arr\u00eater compl\u00e8tement d\u2019utiliser la calculatrice ?<\/p>\n                    <svg>\n                        <use\n                        xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#chevron-right\"\/>\n                    <\/svg>\n                <\/div>\n                <div class=\"faq__questions--content\" style=\"max-height: 0px\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\">\n                    <div itemprop=\"text\"><p class=\"p1\">Pas forc\u00e9ment ! La calculatrice reste utile pour les calculs longs ou complexes. En revanche, pour les op\u00e9rations simples, essayer de calculer de t\u00eate avant de la sortir est une tr\u00e8s bonne habitude. C\u2019est justement comme \u00e7a que tu peux progresser et devenir plus \u00e0 l\u2019aise.<\/p>\n<\/div>\n                <\/div>\n             <\/div>\n                                                                 <div class=\"faq__questions--item \" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n                <div class=\"faq__questions--title  collapsed\">\n                    <p class=\"h4\" itemprop=\"name\">Comment devenir plus rapide sur les pourcentages ?<\/p>\n                    <svg>\n                        <use\n                        xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#chevron-right\"\/>\n                    <\/svg>\n                <\/div>\n                <div class=\"faq__questions--content\" style=\"max-height: 0px\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\">\n                    <div itemprop=\"text\"><p class=\"p1\">Le plus efficace, c\u2019est de conna\u00eetre quelques \u00e9quivalences tr\u00e8s utiles : 50 %, c\u2019est la moiti\u00e9, 25 %, c\u2019est le quart, 10 %, c\u2019est un dixi\u00e8me, 75 %, c\u2019est les trois quarts\u2026 Avec ces rep\u00e8res, tu peux estimer ou calculer tr\u00e8s vite beaucoup de r\u00e9ductions, d\u2019augmentations ou de taux.<\/p>\n<\/div>\n                <\/div>\n             <\/div>\n                                                                 <div class=\"faq__questions--item \" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n                <div class=\"faq__questions--title  collapsed\">\n                    <p class=\"h4\" itemprop=\"name\">Que faire si je me trompe souvent ?<\/p>\n                    <svg>\n                        <use\n                        xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#chevron-right\"\/>\n                    <\/svg>\n                <\/div>\n                <div class=\"faq__questions--content\" style=\"max-height: 0px\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\">\n                    <div itemprop=\"text\"><p class=\"p1\">D\u2019abord, pas de panique. Les erreurs font partie de l\u2019apprentissage. Souvent, elles viennent d\u2019un manque d\u2019automatismes, d\u2019une retenue oubli\u00e9e ou d\u2019un calcul fait trop vite. Le bon r\u00e9flexe, c\u2019est de comprendre d\u2019o\u00f9 vient l\u2019erreur, puis de refaire calmement l\u2019op\u00e9ration pour ancrer la bonne m\u00e9thode.<\/p>\n<\/div>\n                <\/div>\n             <\/div>\n                                                                 <div class=\"faq__questions--item \" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n                <div class=\"faq__questions--title  collapsed\">\n                    <p class=\"h4\" itemprop=\"name\">Comment s\u2019entra\u00eener sans que ce soit trop p\u00e9nible ?<\/p>\n                    <svg>\n                        <use\n                        xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#chevron-right\"\/>\n                    <\/svg>\n                <\/div>\n                <div class=\"faq__questions--content\" style=\"max-height: 0px\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\">\n                    <div itemprop=\"text\"><p class=\"p1\">Le plus simple, c\u2019est d\u2019en faire un peu chaque jour, sans forc\u00e9ment te lancer dans de grosses s\u00e9ances. Tu peux t\u2019entra\u00eener en faisant tes courses, en calculant des r\u00e9ductions, en v\u00e9rifiant des additions ou en te lan\u00e7ant de petits d\u00e9fis. En version ludique, \u00e7a passe beaucoup mieux, et c\u2019est souvent plus efficace !<\/p>\n<\/div>\n                <\/div>\n             <\/div>\n                                                                 <div class=\"faq__questions--item \" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n                <div class=\"faq__questions--title  collapsed\">\n                    <p class=\"h4\" itemprop=\"name\">Les Sherpas peuvent ils m\u2019aider \u00e0 m\u2019am\u00e9liorer en calcul mental ?<\/p>\n                    <svg>\n                        <use\n                        xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#chevron-right\"\/>\n                    <\/svg>\n                <\/div>\n                <div class=\"faq__questions--content\" style=\"max-height: 0px\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\">\n                    <div itemprop=\"text\"><p class=\"p1\">Oui, bien s\u00fbr ! Les Sherpas peuvent t\u2019aider \u00e0 t\u2019am\u00e9liorer en calcul mental en te donnant des m\u00e9thodes simples, des astuces adapt\u00e9es \u00e0 ton niveau et des exercices cibl\u00e9s pour gagner en rapidit\u00e9. C\u2019est tr\u00e8s utile si tu veux retrouver des automatismes ou reprendre confiance face aux chiffres.<\/p>\n<\/div>\n                <\/div>\n             <\/div>\n                                                                 <div class=\"faq__questions--item \" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n                <div class=\"faq__questions--title  collapsed\">\n                    <p class=\"h4\" itemprop=\"name\">Les Sherpas peuvent ils m\u2019aider \u00e0 g\u00e9rer les maths ?<\/p>\n                    <svg>\n                        <use\n                        xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#chevron-right\"\/>\n                    <\/svg>\n                <\/div>\n                <div class=\"faq__questions--content\" style=\"max-height: 0px\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\">\n                    <div itemprop=\"text\"><p class=\"p1\">Oui ! Un cours particulier avec l\u2019un de nos profs peut t\u2019aider \u00e0 mieux g\u00e9rer les maths dans leur ensemble, que ce soit pour comprendre le cours, revoir les bases, progresser en calcul, travailler la m\u00e9thode ou t\u2019entra\u00eener r\u00e9guli\u00e8rement. Que tu bloques sur le calcul mental ou sur des notions plus larges, un accompagnement adapt\u00e9 peut vraiment t\u2019aider \u00e0 avancer.<\/p>\n<\/div>\n                <\/div>\n             <\/div>\n                                <\/div>\n    <\/div>\n<\/section>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-center kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;center&quot;,&quot;id&quot;:&quot;231214&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;24&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;4.5&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Tu as aim\u00e9 cet article ?&quot;,&quot;legend&quot;:&quot;4.5\\\/5 - (24 votes)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;Nos techniques pour s\\u0026#039;am\u00e9liorer en calcul mental ! \ud83d\udcaa&quot;,&quot;width&quot;:&quot;128&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 128px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            4.5\/5 - (24 votes)    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Le calcul mental est une notion de maths indispensable tant dans le cadre scolaire que dans la vie (&#8230;)<\/p>\n","protected":false},"author":158,"featured_media":308095,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":true,"footnotes":""},"category":[803,810],"tag":[],"class_list":["post-231214","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-apprendre-matiere","category-maths"],"acf":[],"_links":{"self":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/posts\/231214","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/users\/158"}],"replies":[{"embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/comments?post=231214"}],"version-history":[{"count":0,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/posts\/231214\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/media\/308095"}],"wp:attachment":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/media?parent=231214"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/category?post=231214"},{"taxonomy":"tag","embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/tag?post=231214"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}