Réponses

2014-05-06T14:40:11+02:00
a; 18/4+8/2-1/2
a = 9/2 +8/2-1/2
a =17/2 -1/2
a = 16/2
a =8


b; 62-6x7+10
b = 62 -42+10
b = 72-42
b =30