Question

用 3,3,7,7 组成一个式子,等于24,怎么写?

Answer 1

1:(3 + 3 ÷ 7) × 7

2:(3 + (3 ÷ 7)) × 7

3:(3 ÷ 7 + 3) × 7

4:((3 ÷ 7) + 3) × 7

5:7 × (3 + 3 ÷ 7)

6:7 × (3 + (3 ÷ 7))

7:7 × (3 ÷ 7 + 3)

8:7 × ((3 ÷ 7) + 3)