Question

1. find the sum of the following numbers: -4, 7, -3, -12, 9

2. find the sum of the following numbers: -5, -8, -10, 23

Answer 1

1.

`= ( - 3 - 4 - 12) + (7 + 9)`

`= - 19 + 16`

`= - 3`

2.

`= ( - 5 - 8 - 10) + 23`

`= - 23 + 23`

`= 0`