Sagot :
Bonsoir,
Calculer mentalement chaque expression.
A=-3-2x(-4)
A = - 3 + 8
A = 5
B=-6:2 + 10
B = (- 3) + 10
B = 7
C=-5x3+ (-12):(-3)
C = - 15 + 4
C = - 11
D=9x (5 - 7)
D = 9 x (- 2)
D = - 18.
E=-11-2x 15
E = - 11 - 30
E = - 41
F= 15 + 5 x (-3)
F = 15 - 15
F = 0.
bonjour
A = - 3 + 8 = 5
B = - 3 + 10 = 7
C = - 15 + 4 = - 11
D = 9 * ( - 2 ) = - 18
E = - 11 - 30 = - 41
F = 15 - 15 = 0