Question

resolva as expressões abaixo:

a)+5+2.(+4)+12=
b)-15-6-10.(2)=
c)+23+5.(3)÷2.(2)=
d)-34-120+3²=
2​

Answer 1

Resposta:

a)+5+2.(+4)+12=

5 + 2 . 4 + 12 =

5 + 8 + 12 =

= 25

b)-15-6-10.(2)=

-15 -6 -10 . 2=

-15 -6 -20 =

= -41

c)+23+5.(3)÷2.(2)=

23 + 5 . 3 ÷ 2 . 2=

23 + 15 ÷ 2 . 2 =

23 + 7,5 . 2 =

23 + 15 =

= 38

d)-34-120+3²=

-34 - 120 + 3² =

-34 - 120 + 9

= -145