Réponses

2013-09-25T15:38:32+02:00
A= 23x9+4=  207+4 = 211
B= 4*[130-(5x12)]:2= 4*(130-60):2 = 4*70:2 = 4*35 = 140
C= 80-5x2 = 80-10 = 70
2013-09-25T15:38:44+02:00
 A =23x9+4  = 211
B 4X(130-(5x12):2 = 140
d 80-5x2  = 70