Question

Efetue as adições
a) A) (+8) + (-3) + (+7)

c) B) (+1) + (-4) + (+10) =

e) C) (-8) + (+10) + (-15) + (-20)​

Answer 1

a) (+8)+(-3)+(+7) = 8-3+7 = 12
b) (+1)+(-4)+(+10) = 1-4+10 = 7
e) (-12)+(-9)+(-1) = -12-9-1 = -22
f) (-8)+(+10)+(-15)+(-20)= -8+10-15-20 =-33

Answer 2

Resposta:

a) (+8) + (-3) + (+7)

+ 8 + -3 + 7

- 11 + 7

- 18

b) (+1) + (-4) + (+10)

+1 + -4 + 10

-5 + 10

- 15

c) (-8) + (+10) + (-15) + (-20)

- 8 + 10 + -15+ -20

-18 + 15 + -20

- 33 + -20

-53