Sagot :
bonsoir
calculer en détaillant les étapes.
C = 12 + ( 15 - 7 ) x 3
C = 12 + 8 x 3
C = 12 + 24
C = 36
D = 7 x 7 - ( 18 - 9 )
D = 49 - 9
D = 40
E = 30 - ( 14 x 2 ) + 4
E = 30 - 28 + 4
E = 34 - 28
E = 6
F = 25 - ( 7 - 4 + 6 )
F = 25 - (13 - 4)
F = 25 - 9
F = 16
G = ( 3 - 2,7 + 2 ) x 4
G = (5 - 2,7) x 4
G = 2,3 x 4
G = 9,2
H = 12 : ( 8 : 2 ) + 4
H = 12 : 4 + 4
H = 3 + 4
H = 7