Sagot :

Bonjour,

A=

(9-[(18+12)/5] * 15

= (9 - (30/5)  *15

= (9-6)*15

= 3*15

= 45

B=

24- 5 * ( 6-4) +18

=  24 - 5* 2 +18

= 24-10 +18

= 32

C=

108/6 +12/6

=  120/6

= 20

D=

30/6 =5