FATIHAFADILY57070
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Exercice 3
Calculer les expressions suivantes.
1) A = (+8)+(-4)-(-5) + (+9) - (+10)+(-7) -
7 , + 8
2) B=(-1)-(-3) - (+13)+(-8) +(-9)-(-17)
3) C=(-11)+(-9)-(+6)-(-11)-(-13)+(+7)​

Sagot :

HASYATA

Bonjour !

1) A = 8-4+5+9-10-7-7+8 = 30 - 28 = 2

2) B = -1+3-13-8-9+17 = 20 - 31 = -11

3) C = -11-9-6+11+13+7 = 31 - 26 = 5

Bonne journée.