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Exercice 54 :
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Enoncé :
Effectue les additions suivantes :
\(324{,}58 + 98{,}61\)
\(87{,}903 + 142{,}7\)
\(1\,203{,}4 + 56{,}089\)
\(398{,}75 + 620{,}08\)
↓
Solution :
\(324{,}58 + 98{,}61 = 423{,}19\)
\(87{,}903 + 142{,}7 = 230{,}603\)
\(1\,203{,}4 + 56{,}089 = 1\,259{,}489\)
\(398{,}75 + 620{,}08 = 1\,018{,}83\)