3.5 * 0.8 + 5.5 * 80% + 4 / 5 간편 연산

3.5 * 0.8 + 5.5 * 80% + 4 / 5 간편 연산

4 / 5 × 3.5 + 5.5 × 8O% + 0.8
= 0.8 × 3.5 + 5.5 × 0.8 + 0.8
= 0.8 × (3.5 + 5.5 + 1)
= 0.8 × 10
= 8