Question

4) Calcule o valor das expressões
a) (3+2)x(5-1)+4 =
b) 82-8x7:(4-1x3) =
c) 25-[10-(2x3+1)] =
d) 70-[12+5x2-1)+6] -
c)8:2+[15-(4x2+1)] =​

Answer 1

a) (3 + 2) × (5 - 1) + 4 → 5 × 4 + 4 → 20 + 4 = 24

b) 82 - 8 × 7 ÷ (4 - 1 × 3) → 82 - 56 ÷ (4 - 3) → 82 - 56 ÷ 1 → 82 - 56 = 26

c) 25 - [10 - (2 × 3 + 1)] → 25 - [10 - (6 + 1)] → 25 - [10 - 7] → 25 - 3 = 22

e) 8 ÷ 2 + [15 - (4 × 2 + 1)] → 8 ÷ 2 + [15 - (6 + 1)] → 8 ÷ 2 + [15 - (6 + 1)] → 8 ÷ 2 + [15 - 7] → 8 ÷ 2 + 8 → 4 + 8 = 12

Espero ter ajudado!!!