古筝支架的放置图片:7 8 9 2算24点

来源:百度文库 编辑:高考问答 时间:2024/04/28 23:13:57
算24点

1: (7 + 9) × 2 - 8
2: ((7 + 9) × 2) - 8
3: (9 + 7) × 2 - 8
4: ((9 + 7) × 2) - 8
5: (2 × (7 + 9)) - 8
6: 2 × (7 + 9) - 8
7: (2 × (9 + 7)) - 8
8: 2 × (9 + 7) - 8

(7+9)*2-8=24
((7+9)*2)-8=24
(9+7)*2-8=24
((9+7)*2)-8=24
2*(7+9)-8=24
(2*(7+9))-8=24
2*(9+7)-8=24
(2*(9+7))-8=24