Question

b) ( 20 ÷ √25 + 3 ) . 111

c) 33 ÷ { √100 + [ 6 ÷ 3 + ( 1 + 2 ) ] – √16 }

d) 10

2 + { 560 ÷ [ 40 + ( 300 ÷ √100 ) ] + 19 }

e) 28 . [ √36 . ( 42 ÷ √9 – 3

2

) ]

f) 360 ÷ { 102

– [ (5

2 + 5

2

) – ( 2 . √9 + 2

2

) ] } + 40

g) ( 6

2

– 54 ÷ 3

2

) . √4

h) ( 8

2

÷ 8 – 2 . 3 ) . √100

i) 5

2 + 42 + √25 + [ 5 + ( 42 ÷ √36 – √16 ) ]

Answer 1

Primeiro, a raiz quadrada, depois a multiplicação e divisão. (comece fazendo os colchetes e depois os parênteses.

B-

( 20 ÷ √25 + 3 ) × 111 = (20÷5+3)×111 = (4+3)×111 =

7 × 111 = 777

$\boxed {B = 777}$

________________________________

C-

33 ÷ { √100 + [ 6 ÷ 3 + ( 1 + 2 ) ] – √16 }

33 ÷ { 10 + [ 2 + 3 ] - 4}

33 ÷ { 10 + 5 - 4}

33 ÷ 11

3

$\boxed {C = 3}$

_________________________________

D-

102 + { 560 ÷ [ 40 + ( 300 ÷ √100 ) ] + 19 }

102 + { 560 ÷ [ 40 + (300 ÷ 10 )] + 19}

102 + { 560 ÷ [ 40 + 30] + 19}

102 + { 560 ÷ 70 + 19}

102 + 649

751

$\boxed {D = 751}$

_________________________________

E-

28 × [ √36 × ( 42 ÷ √9 – 32) ]

28 × [ 6 × ( 42 ÷ 3 - 32) ]

28 × [ 6 × ( 14 - 32 ) ]

28 × [ 6 × ( -18) ]

28 × ( -108)

( -3.204)

$\boxed {E = -3.204}$

_________________________________

F-

360 ÷ { 102– [ (52 + 52) – ( 2 × √9 + 22) ] } + 40

360 ÷ { 102 - [ 104 - (2 × 3 + 22) ] } + 40

360 ÷ { 102 - [ 104 - 28 ] } + 40

360 ÷ { 102 - 76} + 40

360 ÷ 26 + 40

13,84 + 40

53,84

$\boxed {F = 53,84}$

_________________________________

G-

( 62 – 54 ÷ 32) × √4

(8 ÷ 32) × 2

0,25 × 2

0,5

$\boxed {G = 0,5}$

_________________________________

H-

( 82 ÷ 8 – 2 × 3 ) × √100

( 10,25 - 6 ) × 10

4,25 × 10

42,5

$\boxed {H = 42,5}$

_________________________________

I-

52 + 42 + √25 + [ 5 + ( 42 ÷ √36 – √16 ) ]

52 + 42 + 5 + [ 5 + ( 42 ÷ 6 - 4) ]

99 + [ 5 + ( 7 - 4) ]

99 + [ 5 + 3]

99 + 8

107

$\boxed {I = 107}$

ENTENDEU?