Question

Efetue:

a) (+8) ∙ (+ 3) =

b) (+ 4) ∙ (– 7) =

c) (– 2) ∙ (+1) ∙ (+3) ∙ (– 1) =

d) (− 3). (−17): (−1 − 2)

e) (– 750): (−11 + 22) =
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Answer 1

Resposta:

a) (+8) ∙ (+ 3) =

8 . 3 = 24

b) (+ 4) ∙ (– 7) =

-(4.7)

-28

c) (– 2) ∙ (+1) ∙ (+3) ∙ (– 1) =

2.3.1

6

d) (− 3). (−17): (−1 − 2)

(-3) . (-17) ÷ (-3)

1 . (-17)

-17

e) (– 750): (−11 + 22) =

(-750) ÷ 11

-750/11

Answer 2

Explicação passo-a-passo:

a) 8×3 =24

b) 4×(-7) = - 28

c) -2×1×3×(-1) = -2 × (-3) = 6

d) -3×(-17) : (-1-2) = 51 : -3 = -17

e) (-750) : 11= -750/11 (fração)