{"id":8331,"date":"2023-11-10T21:49:00","date_gmt":"2023-11-10T20:49:00","guid":{"rendered":"https:\/\/exos.education\/fr\/exercice-mathematiques-nombres-jusquau-mille-ce2\/"},"modified":"2023-08-21T14:54:58","modified_gmt":"2023-08-21T13:54:58","slug":"exercice-mathematiques-nombres-jusquau-mille-ce2","status":"publish","type":"post","link":"https:\/\/exos.education\/fr\/exercice-mathematiques-nombres-jusquau-mille-ce2\/","title":{"rendered":"Exercice Math\u00e9matiques Nombres Jusqu&rsquo;au Mille CE2"},"content":{"rendered":"<p>Points Importants du Cours <img decoding=\"async\" draggable=false\" role=\"img\" class=\"emoji\" alt=\" \" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/1f4dd.svg\"><br \/>1. Les nombres jusqu&rsquo;\u00e0 1000 se composent de milliersde centainesde dizaines et d&rsquo;unit\u00e9s. Par exemple : le nombre 823 a 8 centaines2 dizaines et 3 unit\u00e9s.<br \/>2. Pour additionner ou soustraire deux nombresnous devons le faire colonne par colonne en commen\u00e7ant par les unit\u00e9s puis les dizaines suivies des centaines.<br \/>3. Pour comprendre la valeur des chiffres dans un nombre m\u00e9lang\u00e9nous devons d\u00e9composer le nombre en ses millierscentaines<br \/>dizaines et unit\u00e9s.<\/p>\n<p>Maintenant passons \u00e0 notre exercice !<img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\"\u2728\" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/2728.svg\"><\/p>\n<p>Exercice: Probl\u00e8mes sur les Nombres jusqu&rsquo;\u00e0 1000 <img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\" \" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/1f551.svg\"> (5-10 min)<\/p>\n<p><img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\"1\ufe0f\u20e3\" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/31-20e3.svg\"> Augustin veut acheter une nouvelle bicyclette qui co\u00fbte 799 euros mais il n&rsquo;a que 177 euros dans sa tirelire ! Combien lui manque-t-il pour pouvoir l&rsquo;acheter ?<\/p>\n<p><img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\"2\ufe0f\u20e3\" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/32-20e3.svg\"> La petite Lucie compte ses billes chaque soir avant d&rsquo;aller au lit. Elle a trois bo\u00eetes o\u00f9 elle range ses billes : dans la premi\u00e8re bo\u00eete elle a mis exactement deux fois plus de billes que dans la deuxi\u00e8me o\u00f9 il y a justement moiti\u00e9 moins qu&rsquo;en troisi\u00e8me o\u00f9 il y a exactement&#8230; Oups! Je n&rsquo;ai pas dit combien! Si je dis que total Lucie poss\u00e8de la bagatelle quantit\u00e9 de 760 billes vous pouvez me dire combien y en a-t-il alors dans chaque bo\u00eet ?<\/p>\n<p>R\u00e9ponses aux probl\u00e8mes <img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\" \" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/1f50d.svg\"><\/p>\n<p><img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\"1\ufe0f\u20e3\" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/31-20e3.svg\"> Pour savoir combien manque \u00e0 Augustin pour acheter sa bicyclettenous faisons une soustraction simple : <br \/>799 (prix du v\u00e9lo) -177 (montant \u00e9pargn\u00e9) = ? <br \/>Ainsi on trouve que Augustin lui manque encore <img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\"\u261d\" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/261d.svg\">622 euros.<\/p>\n<p><img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\"2\ufe0f\u20e3\" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/32-20e3.svg\"> Si on note x le nombre de billes dans la deuxi\u00e8me boitealors :<br \/>x est \u00e9gale \u00e0 celui tiers du total soit x=760\/3\u2248253<br \/>Et donc selon l&rsquo;\u00e9nonc\u00e9:<br \/>le premier groupe contient donc l\u00e0 aussi environ deux fois plus soit environ <img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\"\u261d\" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/261d.svg\">506 billes et<br \/>la troisi\u00e8me contient l\u00e0 aussi environ une moiti\u00e9 ou bien dis autrement: <img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\"\u261d\" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/261d.svg\">253billes .<\/p>\n<p>Merci d&rsquo;avoir particip\u00e9 \u00e0 cet exercice !<img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\" \" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/1f3c5.svg\">N&rsquo;h\u00e9sitez pas \u00e0 rejouer jusqu\u2019\u00e0 bien comprendre comment cela fonctionne !<\/p>\n<p>L&rsquo;exercice est adapt\u00e9 aux \u00e9l\u00e8ves parce qu&rsquo;il utilise des situations simples du quotidien qui permettent aux \u00e9l\u00e8ves d\u2019appliquer leurs connaissances sur les nombres jusqu&rsquo;\u00e0 mille.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Points Importants du 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