Calculer les expressions suivantes en détaillant les calculs .
A : -7 x 5 + 18 : 3 - 10 =
B : ( 15 - 6 ) x (3 - 10 ) =
C : 9 x 6 - [ 7 - 8 x ( -3 + 5 )] =
A : -7 x 5 + 18 : 3 - 10 = -35 + 6-10= -45 + 6= -39
B : ( 15 - 6 ) x (3 - 10 ) = 9 x (-7) = -49
C : 9 x 6 - [ 7 - 8 x ( -3 + 5 )] =9x6 - [7-8x2]
= 9x6 - [7-16]
= 9x6 - [-9]
= 9x6 + 9
= 54 + 9= 63
A : (-7*5)+(18/3)-10
= (-35) +6-10
=-39
B: (15-6)*(3-10)
=9*(-7)
=-63
C:9*6-[7-8*(-3+5)]
= 54-[7-8*2]
= 54-(7-16)
=54-(-9)
=63