Question

8) Resolva as seguintes expressões numéricas:
a) 15 – (8 – 7) + (9 – 4) = b) 12 – { – 3 + [1 + (+ 2 – 9) – 8] + 5} =

c) –15 + {+ 3 – [ 2 – (– 7 + 10)]} = d) 8 + (+ 6 – 1) – (– 4 + 2 – 5) =

Answer 1

Resposta:

A) 19 B) 24 C) -11 D) 20 espero ter ajudado