Question

a)5² : ( 5 +1 -1)+ 4 x 2 = b) (3 +1)² +2 x 5 - 10⁰ = c) 3²: ( 4 – 1) + 3 x 2² = d) 70 –[ 5 x (2² : 4) + 3²] = e) ( 7 + 4) x ( 3² - 2³) =

Answer 1

Resposta:

a) 1,921 ou $\frac{25}{13}$

b) 19

c) 15

d) 56

e) 11

Explicação passo-a-passo:

a) 5² : ( 5 +1 -1)+ 4 x 2

25 ÷ 5 + 8

25 ÷  13

1,921 ou $\frac{25}{13}$

b) (3 +1)² +2 x 5 - 10⁰

9 + 1 + 10 - 1

19

c) 3²: ( 4 – 1) + 3 x 2²

9 ÷ 3 + 3 • 4

3 + 12

15

d) 70 –[ 5 x (2² : 4) + 3²]

70 - [5 • (4 ÷ 4) + 9]

70 - [5 • 1 + 9]

70 - [5 + 9]

70 - 14

56

e) ( 7 + 4) x ( 3² - 2³)

11 • (9 - 8)

11 • 1

11