Question

b) Completa
1. -5+ = -7
2. +8 + = +10
=+10
3. -80 +
=50
4. +4 +
= 0
5. 90 +
= +60​

Answer 1

Respuesta:

1. -5+(-2)= -7

2. +8 + 2 = +10

3. -80 + 130 =50

4. +4 + (-4) = 0

5. 90 + (-30) = +60