Question

a) 7² - 40 + 18 : 3² - 1=

b) 25 x 12 – 135 : 3 =

c) 270 : 9 – 3 + (11 + 25 x 2) =

d) (640 – 50 x 8) : 6 – 32 =

e) 3 + (16 – 4 x 3) – 6 : 2 =

f) 78 : 2 + (9 x 5) – 33 =

g) 2 x (7 – 4) – 12 : 3 + 25 =

h) 25 + 4² - 2³ x 3 =

Answer 1

Resposta:

a) 7² - 40 + 18 : 3² - 1 =

49 - 40 + 18 ÷ 9 - 1 =

49 - 40 + 2 - 1 =

9 + 1 =

10

b) 25 × 12 - 135 : 3 =

25 × 12 - 45 =

300 - 45 =

255

c) 270 : 9 – 3 + (11 + 25 × 2) =

30 - 3 + (11 + 25 ×2) =

30 - 3 + (11 + 50) =

30 - 3 + 61 =

27 + 61 =

88

d) (640 - 50 × 8) ÷ 6 - 32 =

(640 - 400) ÷ 6 - 32 =

240 ÷ 6 - 32 =

40 - 32 =

8

e) 3 + (16 - 4 × 3) - 6 ÷ 2 =

3 + (12 × 3) - 6 ÷2 =

3 + 36 - 3 =

3 + 33 =

36

f) 78 ÷ 2 + (9 × 5) - 33 =

39 + 45 - 33 =

84 - 33 =

51

g) 2 × (7 - 4) - 12 ÷ 3 + 25 =

2 × 3 - 4 + 25 =

6 - 4 + 25 =

2 + 25 =

27

h) 25 + 4² - 2³ × 3 =

25 + 16 - 8 × 3 =

25 + 16 - 24 =

41 - 24 =

17

Espero ter ajudado ^-^