Răspuns :
Răspuns:
a) (-3)*(-5)+(+15)*(-2)=15+(-30)=-15
b)(-5)*(-8)-0+5*(-6)=40-0+(-30)=10
c)(-7)*(-11)+(-4)*(+12)=77+(-48)=29
d)(-16)*(+2)-(-7)*(+12)=-32-(-84)=52
e)(-2)*(+13)-(-5)*(-6)=(-26)-30=-56
f)(-15)*(-3)+(-8)*(-12)=45+96=141
g)(-3)*(+12)-(-6)*(+8)=(-36)-(-48)=12
h)(+16)*(-4)-(+5)*(-16)=(-64)-(-80)=16