Question

expressões numéricas
me ajudem


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Answer 1

Oi....

a)

3² - 2 × [3² + (4² - 5) × 3]

9 - 2 × [9 + (16 - 5) × 3]

9 - 2 × [ 9 + 11 × 3]

9 - 2 × [9 +33]

9 - 2 × 42

9 - 84

- 75

b)

40 + {3 + [(2³ + 12) + (13 + 2² × 3)]+5}

40 + {3 + [( 8 + 12) + (13 + 4 × 3)] + 5}

40 + {3 + [20 + ( 13 + 12)] + 5}

40 + {3 + [20 + 25] + 5}

40 + { 3 + 45 + 5

40 + 53

93

c)

{5² - [5 +(3 × 7 - 4)]} ÷ 5 + 3³ × 2 -(8² - 60) × 5

{25 - [ 5 + (21 - 4)]} ÷ 5 + 27 × 2 - (64 - 60) × 5

{25 - [5 + 17]} ÷ 5 + 54 - 4 × 5

{25 - 22} ÷ 5 + 54 - 20

3 ÷ 5 + 54 - 20

0,6 + 54 - 20

54,6 - 20

34,6

d)

{[(3² × 2² × 7) ÷ 3 + 6] ÷ 5} × 3 × 2²

{[(9 × 4 × 7) ÷ 3 + 6] ÷ 5} × 3 × 4

{[252 ÷ 3+ 6] ÷ 5} × 3 × 4

{[84 + 6] ÷ 5} × 3 × 4

{ 90  ÷ 5} × 3 × 4

18 × 3 × 4

216

e)

{[(2² × 4² × 5) ÷ 4 + 10] ÷3 } × 3 × 2²

{[(2² × 2⁴ × 5) ÷ 4 + 10] ÷3} × 3 × 4

{[(5 × 2⁶) ÷ 4 + 10] ÷ 3 } × 3 × 4

{[(5 × 64) ÷ 4 + 10] ÷ 3} × 3 × 4

{[320 ÷ 4 + 10] ÷ 3} × 3 × 4

{[80 +10] ÷ 3} × 3 × 4

{90 ÷ 3} × 3 × 4

30 × 3 × 4

360

Espero ter ajudado.