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ACTIVITES

ACTIVITES. Additions et soustractions (4). Exercice 1. Effectuer sans poser les opérations : 147 + 24 24,32 + 12,5 60 + 18 + 40 375 + 248 + 25 65,2 + 8,73 + 107,895. Exercice 2.

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ACTIVITES

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  1. ACTIVITES Additions et soustractions (4)

  2. Exercice 1 • Effectuer sans poser les opérations : • 147 + 24 • 24,32 + 12,5 • 60 + 18 + 40 • 375 + 248 + 25 • 65,2 + 8,73 + 107,895

  3. Exercice 2 • Calculer en passant par l’écriture décimale puis donner le résultat sous forme de fraction décimale comme dans l’exemple suivant : 0,3 + 0,4 = 0,7 =

  4. Exercice 3 • Donner un ODG des calculs suivants : • 375 + 1821 + 799 • 17 827 + 8121 • 1401 – 497 • 7 499 997 – 440 079 • 22 005 – 398 CORRECTION CORRECTION CORRECTION CORRECTION CORRECTION

  5. Exercice 4 • Compléter le tableau pour l’ordre de grandeur et entourer la bonne réponse dans les résultats proposés.

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