Réponses

2014-09-06T13:10:18+02:00
Calculer :

a) 45 - (12 + 9) = 45 - 21 = 24

b) (64 - 18) - (26 +13) = 46 - 39 = 7

c) 6 * (14 + 8) = 6 x 22 = 132

d) (12 - 7) * (12 + 7) = 5 x 19 = 95

e) 36 : (3 + 6) = 36 : 9 = 4

f) (39 + 33) : (15 - 7)
= 72 : 8 = 9