Question

Resolva as expressões : a) (-2+6)+(+3+5)= b) (+18-12+9) – (+8 -7 +2)= c) -35 + [ -8 + (+12-15)-6]= d) -13+{-25-[(-18):(-6)].+5} = e) +96-[+28:(+10)-(3)].[-14.(-2)] =

Answer 1

Resposta:

a)8

b)12

c)-52

d)-153

e)-7660

Answer 2

____________________________

a) (-2+6)+(+3+5)=

4 + 8

12

b) (+18-12+9) – (+8 -7 +2)=

(6+9) - ( 1 + 2)

15 - 3

12

c) -35 + [ -8 + (+12-15)-6]=

-35 + [ -8 + (-3)-6]=

-35 + [ -8 -3)-6]=

-35 + [ -17]=

-35 - 17

- 52

d) -13+{-25-[(-18):(-6)].+5} =

-13+{-25-3.+5} =

-13+{-25-15} =

-13+{-40} =

-13 - 40

-53

e) +96-[+28:(+10)-(3)].[-14.(-2)] =

+96-[+28:7].[-14.(-2)] =

+96-[+4].[-14.(-2)] =

+96-[+4].7 =

96 - 4.7

96 - 28

68