Question

calcule as expressões:
a) −14 + 42: 3 =

b) 40: (−2) + 9 =

c) (−12): 3 + 6 =

d) (−54): (−9) + 2 =

e) 20 + (−10) ∙ (−5) =

f) (−1) ∙ (−8) + 20 =
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Answer 1

Resposta:

a) -14 + 42 ÷ 3 = -14 + 14 = 0

b) 40 ÷ (-2) + 9 = -20 + 9 = -11

c) (-12) ÷ 3 + 6 = -4 + 6 = 2

d) (-54) ÷ (-9) + 2 = 6 + 2 = 8

e) 20 +(-10) × (-5) =20 - 10 × (-5) = 20 - (-50) =20 + 50 = 70

f) (-1) × (-8) + 20 = 8 + 20 = 28

Answer 2

Resposta:

A)-14+42÷3=0

b)40÷ (−2) + 9 =11

c)(−12)÷3 + 6 =2

d)(−54)÷ (−9) + 2 =8

e)20 + (−10) ∙ (−5) =70

f) (−1) ∙ (−8) + 20 =28

Explicação passo-a-passo:

espero tenha ajudado muito