Question

Atividade teste:
Determine
as
seguintes
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)​

Answer 1

a)-8+(+10)-(+7)+(+2)

-8+10-7+2

+2-5

-3

b)+20+(-19)-(-13)+(-8)

+20-19+13-8

+1+4

+5

c)-(-5)-(+8)+(+2)+(+9)

+5-8+2+9

-3+11

+8

d)-1+(+6)-(-3)+(-4)+(-5)

-1+6+3-4-5

+5-1-5

+4-5

-1

e)+10+(-20)-(-15)+(+12)-(+30)

+10-20+15+12-30

-10+27-30

+17-30

-13

ESPERO TER TE AJUDADO