Question

1- Resolva as operações:

a) 3-7.3 =

b) 5 + 2.8=

c) 50 - 25. 2 =

d) 30 + 8 : (-2) =

e) 15:5-10 =

f) 3 +6.2-15: (-3) =

g) {4- [2. (8 - 12): 2) =

h) {2 + [3: (10 - 11) +1] : 2) =

i) 5.[(8-5).(2 + 7)] =

j) {[(8+4):3).(3-1)]} =​

Answer 1

Resposta:

A) 3-21

19

B)5+16

21

C) 50-50

0

D)30 -4

26

E) 15:5

3

F)3+12+3

18

G){4-[2•(-4):2]}

{4-[-8:2]}

{4-([-4}}

{4+4}

8

H)

Answer 2

completando o comentario acima:

h) {2 + [3: (10-11) +1] :2} =
{2 + [3 : (-1) + 1] : 2} =
[2 + (- 3 + 1) : 2] =
2 + (-2) : 2 =
2 + (-1) =
2 - 1 =
1

i) 5 • [(8 - 5) • (2 + 7)] =
5 • ( 3 • 9) =
5 • 27 =
135

j) {[(8 + 4) : 3) • (3 - 1)] =
[(12 : 3) • 2] =
(4 • 2) =
8

bons estudos!