Question

Calcule o valor numérico da expressão: {[(8·4 + 3)÷7 + (3 + 15÷5)·3]·2–(19–7)÷6}·2 + 12 a) 60 b) 70 c) 80 d) 90 e) 100

Answer 1

{[(32+3) ÷ 7 + (3+3) × 3] × 2 - 12 ÷ 6} × 2 + 12

{[ 35 ÷ 7 + 6 × 3] × 2 - 12 ÷ 6} × 2 + 12

{[5+18] × 2 - 12 ÷ 6} × 2 + 12

{23 × 2 - 12 ÷ 6} × 2 + 12

{46 - 2} × 2 + 12

44 × 2 + 12

88 + 12

100