Question

Me Ajudar PFV
a) −6 + 5 + 12 – 7=

d) (−6)² + (−3) =

b) (+10) − (+8) − (−18) + (−6) =

e) (−2) + (−2) ∶ (−2) =

c) (−1) + (−7) ∶ (−2) =

f) −5 ∙ (4 − 12 ∶ 2) =

Answer 1

Resposta:

Explicação passo a passo:

a) −6 + 5 + 12 – 7

= - 1 + 5

= 4

d) (−6)² + (−3)

= 36 - 3

= 33

__________

b) (+10) − (+8) − (−18) + (−6)

= 10 - 8 + 18 - 6

= 2 + 12

= 14

_____________

e) (−2) + (−2) ∶ (−2) =

= - 2 +(+1)

= - 2 + 1

= - 1

________________

c) (−1) + (−7) ∶ (−2)

= - 1 + 7/2

= - 1 + 3,5

= 2,5

________________

f) −5 ∙ (4 − 12 ∶ 2)

= - 5 . (4 - 6)

= - 5 . (-2)

= 10