Question

a) -8×(-3)-2×(-4)+5×(-3)

b) 6×(-2)-(-2)×(-2)×(-2)+(-5)×(+3)

c)8×(-1)-(-6)×(-3)+2×(-7)

d)-4×(-3)+(-2)×(-1)-(-7)×(+2)
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Answer 1

Răspuns:

a) -8×(-3)-2×(-4)+5×(-3)=24-(-8)+(-15)=24+8-15=17

b) 6×(-2)-(-2)×(-2)×(-2)+(-5)×(+3)=-12-(-6)+(-15)=-12+8-15=-19

c)8×(-1)-(-6)×(-3)+2×(-7)=-8-18+(-14)=-8-18-14=-40

d)-4×(-3)+(-2)×(-1)-(-7)×(+2)=12+2-(-14)=12+2+14=28