Question

a) [ 25 - (18:3)]. { 5 -[ 18 -(4.5 - 4)]}=
b) 25:5+ (8 + 3.10 : 2) + (4.3- 14:7)=
c) {38 +[(143: 11 + 7) -5.2]}: 6=
d) - 4 +3.(-2)3 + 5. V16 =
e) (-7+8:(-15+ V25)]: 9=​

Answer 1

Resposta:

A)57

B)38

C)8

D)-53

Explicação passo-a-passo:

A) [25 - (18 : 3)] . {5 - [18 - (4 . 5 - 4)]} =

[25 - 6] . {5 - [18 - (20 - 4)]} =

[25 - 6] . {5 - [18 - 16]} =

19 . {5 - 2} =

19 . 3 = 57

B) 25 : 5 + (8 + 3 . 10 : 2) + (4 . 3 - 14 : 7) =

25 : 5 + (8 + 30 : 2) + (12 - 14 : 7) =

25 : 5 + (8 + 15) + (12 - 2) =

25 : 5 + 23 + 10 =

5 + 23 + 10 =

28 + 10 = 38

C) {38 + [(143 : 11 + 7) - 5 . 2]} : 6 =

{38 + [(13 + 7) - 5 . 2]} : 6 =

{38 + [20 - 5 . 2]} : 6 =

{38 + [20 - 10]} : 6 =

{38 + 10} : 6 =

48 : 6 = 8

D) -4 + 3 . (-23) + 5 . √16 =

-4 + 3 . (-23) + 5 . 4 =

-4 + (-69) + 20 =

-73 + 20 = -53