October 2020 2 57 Report
Salut j'ai besoin d'aide pour deux exercice de mathématiques niveau 4eme
Calculer les sommes suivantes.
a.(+3) + (+12)
b.(+7) + (-11)
c.(-5) + (+17)
d.(-8) + (-7)
2) Calculer les sommes suivantes.
a.(+17) - (+9)
b.(+11) - (-19)
c.(-8) - (+6)
d.(-13) - (-9)
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