Question

(-)
(-)= (+)
Exercicios
1) Efetue:
A) -1 -2-3=
B)-4-5-8 + 10 =
C) -7 +20 - 15 + 20 - 1 =
D) +8 - 10 - 7+ 13 - 14 + 5 - 6 =​

Answer 1

-1 -2-3 = -6

-4-5-8 + 10 = -7

-7 +20 - 15 + 20 - 1 = 17

+8-10-7+13-14+5-6= -11