Question

A) Adição de números inteiros: 1. +5 + 3 = _______ 2. ( - 8) + ( -12) = _________ 3. ( - 9) + (+11) = _________ 4. ( +15) + ( - 6) = ________ 5. ( + 1) + ( - 4) + ( - 6) = _________ 6. ( - 3) + (+ 2) + (- 4) + (- 6) = _____​

Answer 1

1. +8

2. -20

3. +2

4. +9

5. -9

6. -11