Question

Genteee pfvvvvv rápido

Answer 1

- 4, - 20, + 10, +7, -14,  -11, +27

-3 + (-1) = -4

-2 - 18 + -20

3 - (-7) = 10

9 + (-2) = 7

-7 -7 = -14

-4 - 7 = -11

(+15) - (-12) = 27