Question

2) Calcule as expressões numéricas a seguir:
a) (+8) + (+12) = 20
b) (-7) + (-3) = 10
c) (+15) + (+34)=49
d) -4 +12 = 8
e) +5 - 16 = 11​

Answer 1

Resposta:

8+12=20

-7-3=-10

15+34=49

-4+12=8

+5-16=-11