Question

Aplique as regra dos sinais e resolva:

A) -5×(-4)

B) 3×9×(-5)

C) -(+6)×(-8)×(+3)

D) 1×(-8)

E) 6×(+5)

F) -10×(+3)×1

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Answer 1

Explicação passo-a-passo:

a) + 20

b) +27.(-5)= - 135

c) (-6).(-8) .(+3)= (+48).(+3)= +144

d) - 8

e) +30

f) (-30) .1= - 30

Answer 2

Explicação passo-a-passo:

-5× (-4)

+20

3×9 × ( -5)

27×-5

-135

- (+6) × (-8) × (+3)

-6×-8×3

48×3

144

1× ( -8)

-8

6× - (+5)

6×-5

30

-10 × (+3) × 1

-30×1

-30