Question

Efetue A) (+8)+(-4)+(-6) B) (+10)+(+7)+(-1) C) (+4)+(+2)+(+7) D) (-4)+(-2)+(-7) E) (+9)+(-6)+(-3) F)(-15)+(-20)+(+25)

Answer 1

Resposta:

a) (+8)+(-4)+(-6)

8-4-6

-2

b) (+10)+(+7)+(-1)

10+7-1

16

c) (+4)+(+2)+(+7)

4+2+7

13

d) (-4)+(-2)+(-7)

-4-2-7

-13

e)(+9)+(-6)+(-3)

9-6-3

0

f) (-15)+(-20)+(+25)

-15-20+25

-10