Question

5) Resolva as expressões abaixo:
A) 72 - 5x( 27 : 3 - 6 ) =
B) ( 20 : 5 + 3 ) x 22 =
C) 33 : { 10 + [ 6:3+ (1 + 2)]-4}
D) 120 + { 560 : [ 40 + ( 300 : 10 ) ] -
E) 28 x [ 6 x ( 42: 3-9) ] =
F) 360 : { 100 - [ 50 - (2 x 3 + 4)]​

Answer 1

Resposta:

a: 72-5x(27:3-6)=

72-5x(9-6)=

72-5x3=

72-15=

57

b: (20:5+3)x22=

(4+3)x22=

7x22=

154

c: 33:{10+[6:3+(1+2)]-4}=

33:{10+[6:3+3]-4}=

33:{10+[2+3]-4}=

33:{10+5-4}=

33:11=

3

d: 120+{560:[40+(300:10)]}=

120+{560:[40+30]}=

120+{560:70}=

120+8=

128

e: 28x[6x(42:3-9)]=

28x[6x(14-9)=

28x[6x5]=

28x30=

840

f: 360:{100-[50-(2x3+4)]}=

360:{100-[50-(6+4)]}=

360:{100-[50-10]}=

360:{100-40}=

360:60=

6