BDG Calcul CM2 2012 - Bout de Gomme | A l'école avec...
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Transcript of BDG Calcul CM2 2012 - Bout de Gomme | A l'école avec...
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l’ordre de grandeur
4 Z,,7 = 28
437 Z,,68
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2 chiffres après la virgule
1 chiffres après la virgule
2+1 = 3 chiffres après la virgule
4,37 Z,,6,8 = 29,716
29 , 716 est proche de 28
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