Question

3) Resolva as expressões numéricas abaixo;
a) 72-5x (27:3-6)
b) (20:5+3) x 22
d (36 - 54:9) x2
c) (50 - 20) x (45+8)
2​

Answer 1

a) 72-5 x (27:3-6) = 67 × (9 - 6) = 67 × 3 = 201

b) (20:5+3) x 22 = (4 + 3) × 22 = 7 × 22 = 154

c) (50 - 20) x (45+8)² = 30 × (2,025 + 64) = 2,809

d) (36 - 54:9) x 2 = (36 - 6) × 2 = 30 × 2 = 60