Question

4) Resolva as expressões numéricas: a) ( 4 x 3 ― 6 ) . 3 + 20 ÷ 5 b) [ 30 ÷ 5 + ( 6 ÷ 3 + 4 x 1 ) . 3 ] c) ( 5 x 2 ― 4 x 2 ) . 2 + 40 ÷ 5 d) 30 ÷ 3 + 50 ÷ 5 + ( 4 x 5 ― 10 x 1 ) . 2 *

Answer 1

Resposta:

a)(12+6).3+ 4

18.3+4

54+4

58

b)[30÷5+(6÷3+4×1).3]

[ 6+(2+4).3]

[6+6.3]

[6+18]

24