Svp aider moi pour l exercice 4

Bonjour,

A = 12 + 8 x 5 - 4 + 16 : 2

A = 12 + 40 - 4 + 8

A = 12 + 8 + 40 - 4

A = 60 - 4

A = 56

B = 17 - (3 + 8 - 5)

B = 17 - (11 - 5)

B = 17 - 6

B = 11

C = 18 + 4 x (7 x 2 - 6)

C = 18 + 4 x (14 - 6)

C = 18 + 4 x 8

C = 18 + 32

C = 50.

D = 75 - (6 + 3 x 10) : 9

D = 75 - (6 + 30) : 9

D = 75 - (36) : 9

D = 75 - 4

D = 71.