Question

1. -6 + 1 3 - 11 +1 2 =
2. (+7) + (-8) + (-9) =
3. [3 + 8 - 12 + (15 - 17) + 3] - 8 + 9 =

Answer 1

Respuesta:

1.igual a.43

2.igual a. 24

3.igual a. 1