Réponses

2013-10-03T14:09:06+02:00
Bonjour
A = 225 x 4 - (75 + 210)
A = 900 - 285 = 615

B = 250 + (450x 6) - 1 800
B = 250 + 2 700 - 1 800
B = 1 150

C = 3 x [600 - 500 : 25]
C = 3 x (600 - 20)
C = 3 x 580 = 1740