2,6,9,9算24点
3个回答

1:(2 + 6 ÷ 9) × 9

2:(2 + (6 ÷ 9)) × 9

3:2 × (9 - 6 + 9)

4:2 × ((9 - 6) + 9)

5:2 × (9 - (6 - 9))

6:2 × (9 + 9 - 6)

7:2 × ((9 + 9) - 6)

8:2 × (9 + (9 - 6))

9:(6 ÷ 9 + 2) × 9

10:((6 ÷ 9) + 2) × 9

11:9 × (2 + 6 ÷ 9)

12:9 × (2 + (6 ÷ 9))

13:(9 - 6 + 9) × 2

14:((9 - 6) + 9) × 2

15:(9 - (6 - 9)) × 2

16:9 × (6 ÷ 9 + 2)

17:9 × ((6 ÷ 9) + 2)

18:(9 + 9 - 6) × 2

19:((9 + 9) - 6) × 2

20:(9 + (9 - 6)) × 2