24点游戏2xa07xa05xa09xa0答案

1: 7 × 5 -(2 + 9)
2: (7 × 5) - (2 + 9)
3: 7 × 5 - 2 - 9
4: (7 × 5) - 2 - 9
5: (7 × 5 - 2) - 9
6: ((7 × 5) - 2) - 9
7: 7 × 5 -(9 + 2)
8: (7 × 5) - (9 + 2)
9: 7 × 5 - 9 - 2
10: (7 × 5) - 9 - 2
11: (7 × 5 - 9) - 2
12: ((7 × 5) - 9) - 2
13: 5 × 7 -(2 + 9)
14: (5 × 7) - (2 + 9)
15: 5 × 7 - 2 - 9
16: (5 × 7) - 2 - 9
17: (5 × 7 - 2) - 9
18: ((5 × 7) - 2) - 9
19: 5 × 7 -(9 + 2)
20: (5 × 7) - (9 + 2)
21: 5 × 7 - 9 - 2
22: (5 × 7) - 9 - 2
23: (5 × 7 - 9) - 2
24: ((5 × 7) - 9) - 2