Question

1 - Calcule:
a) - 84 +84 =
b) - 60 - 30 =
c) - 75 - 15
d) + 16 - 20 =​

Answer 1

Resposta:

A) -84+84=0

B)-60-30= -90

C)-75-15= -90

D)+16-20= -4