Question

1. Resolva as expressões abaixo:
a. 38 + 20 – 16 =
b. 15 – 5 – 2 + 6 – 1 =
c. (6 x 8) : 24 + 5 – 2 . (3 - 2) =
d. {32 - [5 + (3 . 7 - 4)]} : 5 + 9 x 2 - (64 - 60) . 5 =
e. 35 - {5 + [15 : (3 + 2) - (18 + 2) : 10] + 3 . (5 + 2) + 3} =
f. 500 – 155 – 100 – 220 + 111 – 89 =
g. – 4 – 3 – 2 – 0 + 3 + 4 =
h. 45(50 – 45) + 10 – 4 =
i. – 200 + 300 – 150 + 50 =
j. 5{3[2(50-35) + 10] : 20} + 110 =​

Answer 1

a.

30 + 20 - 16

30 + 4

= 34

b.

15 – 5 – 2 + 6 – 1

8 + 5

= 13

c.

(6 x 8) : 24 + 5 – 2 . (3 - 2)

48 : 24 + 5 - 2 . 1

2 + 5 - 2 . 1

7 - 2

= 5

d. {32 - [5 + (3 . 7 - 4)]} : 5 + 9 x 2 - (64 - 60) . 5

[32 - (5 + 17)] : 5 + 18 - 4 . 5

(32 - 22) : 5 + 18 - 20

10 : 5 + (- 2)

2 - 2

= 0

e. 35 - {5 + [15 : (3 + 2) - (18 + 2) : 10] + 3 . (5 + 2) + 3}

35 - {5 + [15 : 5 - 20 : 10] + 3 . 7 + 3}

35 - {5 + [3 - 2] + 21 + 3}

35 - {5 + 1 + 21 + 3}

35 - 30

= 5

f. 500 – 155 – 100 – 220 + 111 – 89 =

611 - 564

= 47

g. – 4 – 3 – 2 – 0 + 3 + 4

-9 + 7

= - 2

h. 45(50 – 45) + 10 – 4

45 . 5 + 10 - 4

225 + 6

= 231

i. – 200 + 300 – 150 + 50

350 - 350

= 0

j. 5 {3 [2 (50 - 35) + 10] : 20} + 110

5 { 3[ 2(15) + 10] : 20} + 110

5 [ 3( 30 + 10) : 20] + 110

5 [ 3( 40 : 20)] + 110

5( 3 . 2) + 110

5( 6) + 110

30 + 110

= 140

Bons estudos!

Espero ter ajudado!!