Question

1) Resolva as expressões:
a) −8 + (−81): (−27) = -11
b) (−121): (−11) + (+8) x (+9) = -27
c) (−3) x (−5 + 7) = n consegui fazer
d) (−2 − 3) x (1 − 4) =
e) (5 − 1) x (−6 + 3) x (−2 − 8) =
f) 20 + (−3) x (+4) − (−2) =
g) [(−12) + (+15)]: (−3) =

Answer 1

Resposta:

c) (−3) x (−5 + 7)

Resposta: -6