Question

1. Resolva as expressões numéricas:
a) 76 + 81: 3 - 39=
b) 52 + 36 x 4 + 32 - 90 =
c) 38 + (66 - 6 x 10) =
d) 35 x (7 - 5) =
e) 52 - (25 + 78 : 13) =
f) (25 - 5 x 4) : 5 =

Answer 1

Resposta:

A)64

B)138

C)44

D)70

E)21

F)1

Explicação passo-a-passo:

A) 76 + 81 : 3 - 39

= 76 + 27 - 39

= 76 - 12

= 64

B) 52+36×4+32-90 =  52+144-58 = 138

D) 7 - 5 = 2  

  35 x 2 = 70

E) 52-(25+78:13)  

  52 - ( 25 + 6)

  52 - ( + 31)

  52 - 31

  = 21

F) (25-20)÷5

   5÷5= 1