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Exercice 57 :
↓
Enoncé :
Effectue les additions suivantes :
\(45{,}05 + 325{,}5\)
\(1\,245{,}8 + 315{,}65\)
\(508{,}7 + 96{,}85\)
\(2\,150{,}09 + 74{,}91\)
↓
Solution :
\(45{,}05 + 325{,}5 = 370{,}55\)
\(1\,245{,}8 + 315{,}65 = 1\,561{,}45\)
\(508{,}7 + 96{,}85 = 605{,}55\)
\(2\,150{,}09 + 74{,}91 = 2\,225{,}0\)