Răspuns :

Madalinachirita190id

Răspuns:

A=4×(11+5)=4×16=64 sau

4×11+4×5=44+20=64

B.-3×(5+9)=-3×14=-42 sau

-3×5+(-3×9)=-15+(-27)=-42

C.-4×(-6+9)=-4×3=-12sau

-4×-6+(-4×9)=24+(-36)=-12

D.10×((-8-31)=10×(-39)=-390sau

10×(-8)+10×(-31)=(-80)+(-310)=-390

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