Question

1. Números Inteiros. Calcule o valor das expressões (2,5 pontos): a) 38 – (6 * 4) – (28 ÷ 2) = b) [(38 − 6) * 4 − 28] ÷ 2 = c) (−5) * (−3) * (4) = d) −15 * (−6) − (−10) * (−3) = e) (5 * 10) – 4 =

Answer 1

Resposta:

a)38 – (6 * 4) – (28 ÷ 2) =

38-24-14= 0

b) [(38 − 6) * 4 − 28] ÷ 2=

[32*(-24)]÷ 2=

-768÷ 2=

-384

c) (−5) * (−3) * (4) =

15*4=

60

d) −15 * (−6) − (−10) * (−3) =

90-30=

60

e) (5 * 10) – 4 =

50-4=

46