Réponse :
A = 16 : 4 x 4 - 16
A = 16 : (4x4) - 16
A = (16 : 16) - 16
A = -1
B = 10 x 2 - (10 + 2)/(5 - 3 )
B = 20 - 12/2 = 20 - 6 = 14
C = 20 : 2 x 3 - (4 x 3 - 10)
C = 20 : 6- (12 - 10)
C = 20 : (6 - 2) = 20 : 4 = 5
D = (12 + 3 x 4)/(5 x 3 - 3) + (15 : 3 - 5)
D = (12 + 12)/(15 - 3) + (5 - 5)
D = (24/12) + 0 = 2
Explications étape par étape