Réponse :
Explications étape par étape
Bonsoir
A = 9 + 7 - 2 + 1,5
A = 17,5 - 2
A = 15,5
B = -11 + 7 x 2 + 7 + 8 - 1
B = -11 + 14 + 15 - 1
B = -12 + 29
B = 17
C = -2 - 7 - (7 - 8 : (-1))
C = -9 - (7 + 8)
C = -9 - 15
C = (-24)
D = 5 x 2 - 10 : 10 x 7 + 2
D = 10 - 1 x 7 + 2
D = 12 - 7
D = 5
E = 5 x 2 - 10 : 10 x (7 + 2)
E = 10 - 1 x 9
E = 10 - 9
E = 1
F = (8 - 2) x 2 + 7 x 2
F = 6 x 2 + 14
F = 12 + 14
F = 26
