Question

Calcule as expressões numéricas: a) (7 x 6 + 8) : ( 38 – 7 x 4)= b) ( 27: 3 + 1) x ( 5 x 5 -20)= c) 14 : 2 + [ 13 - ( 4 x 2 + 1 ) ] = d) 80 - 5 x ( 28 - 6 x 4 ) + 6 - 3 x 4 = e) [( 4 + 16 : 2) x 5 - 10] : 10 = f) 60 + 2 x {[ 4 x ( 6 + 2 )- 10 ]+ 12} = g) { 10 + [ 5 x ( 4 + 2 x 5) - 8] x 2 } - 100 =

Answer 1

A) 50:(38-28)=
50:10=5

B) 10.5=50

C) 14:2 + [ 13 - 9]=
14:2 + 4=
7 + 4 = 11

D) 80 - 5 . (28-24) + 6 - 3 . 4=
80 - 5 . 4 + 6 - 3 . 4=
80 - 20 + 6 - 12= 54

E) [(4+8).5-10]:10=
[12.5-10]:10=
50:10=5

F) 60+2.{[4.8-10]+12}=
60+2.{22+12}=
60+2.10=
60+20=80

G) {10+[5.(4+10)-8].2}-100=
{10+[5.14-8].2}-100=
{10+62.2}-100=
{10+124}-100=
134-100=34

Espero ter ajudado!