Bonsoir
Calculer en détaillant :
A 2x7 -4x2 = 14 - 8 = 6
B 2x9x5 = 18 x 5 = 90
C 14:2x3 = 7 x 3 = 21
E 18-5-6 = 18 - 11 = 7
F 17,4 +18+0,6 = 18 + 18 = 36
G (7-5)x(17-9) = 2 x 8 = 16
H 2+8x9 = 2 + 72 = 74
I 7+12x3+4 = 7 + 36 + 4 = 47
J (7+4) x9-8x(16-6)+1 = 11 x 9 - 8 x 10 + 1 = 99 - 80 + 1 = 100 - 80 = 20
K [3x(9-2)-18]x3 = (3 x 7 - 18) x 3 = (21 - 18) x 3 = 3 x 3 = 9
M 25,7+11+4,3 = 30 + 11 = 41
N (3x8-14)÷2 = (24 - 14) : 2 = 10 : 2 = 5
O 15x2-9:3 = 30 - 3 = 27
P 13x3+7 = 39 + 7 = 46
Q (45+6x5)÷(17-3x4) = (45 + 30) : (17 - 12) = 72 : 5 = 15.
