Question

Determine as seguintes somas a)(-8)+(+10)+(+7)+(-2) B)(+20)+(-19)+(-13)+(-8) C)(-5)+(+8)+(+2)+(+9) d)(-1)+(+6)+(-3)+(-4)+(-5) e)(+10)+(-20)+(-15)+(+12)+(+30)+-40

Answer 1

Resposta:

(-8)+(+10)+(+7)+(-2) B)(+20)+(-19)+(-13)+(-8) C)(-5)+(+8)+(+2)+(+9) d)(-1)+(+6)+(-3)+(-4)+(-5) e)(+10)+(-20)+(-15)+(+12)+(+30)+-40= -29

Explicação passo-a-passo:

Answer 2

A)(-8)+10+7-2
2+5
7

B)20-19-13-8
1-21
-20

C)(-5)+8+2+9
3+11
14

D)(-1)+6-3-4-5
5-7-5
-17

E)10-20-15+12+30-40
(-25)+12+30-40
(-25)+42-40
17-40
-23

Espero ter lhe ajudado de alguma maneira :-)