Question

2，5，5，10，算24点!急！！加分！

一个2，两个5，一个10算24点！
二楼：还能在写一个不同的呀?
加分啦！！
老师说用分数！
加分啦！！
老师说用分数！
加分啦！！
老师说用分数！
五楼：是两个5一个2哎！

Answer 1

曾经有道题和这样差不多，现在想想原来是它的转换形式（5、5、5、1）
这道题可以把2÷10=1/5（分数）=0.2（小数），看成是上题中的1、5
所以解法是：5 × (5 - 2 /10)=24 —— 目前只有这一种解法！！

Answer 2

1: (2 + 2 ÷ 5) × 10
2: (2 + (2 ÷ 5)) × 10
3: (2 × (2 + 5)) + 10
4: 2 × (2 + 5) + 10
5: (2 + 5) × 2 + 10
6: ((2 + 5) × 2) + 10
7: (2 - 5) × (2 - 10)
8: (2 × (5 + 2)) + 10
9: 2 × (5 + 2) + 10
10: (2 ÷ 5 + 2) × 10
11: ((2 ÷ 5) + 2) × 10
12: (2 - 10) × (2 - 5)
13: (5 + 2) × 2 + 10
14: ((5 + 2) × 2) + 10
15: (5 - 2) × (10 - 2)
16: (5 × 10 - 2) ÷ 2
17: ((5 × 10) - 2) ÷ 2
18: 10 + (2 × (2 + 5))
19: 10 + 2 ×(2 + 5)
20: 10 × (2 + 2 ÷ 5)
21: 10 × (2 + (2 ÷ 5))
22: 10 + (2 + 5) × 2
23: 10 + ((2 + 5) × 2)
24: 10 + (2 × (5 + 2))
25: 10 + 2 ×(5 + 2)
26: (10 - 2) × (5 - 2)
27: 10 × (2 ÷ 5 + 2)
28: 10 × ((2 ÷ 5) + 2)
29: 10 + (5 + 2) × 2
30: 10 + ((5 + 2) × 2)
31: (10 × 5 - 2) ÷ 2
32: ((10 × 5) - 2) ÷ 2

希望可以帮助你
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Answer 3

用+ - * / 括号计算得24，

(5 - 2 ÷ 10) × 5

Answer 4

5乘中括号5减小括号2除10等于24

Answer 5

1: (2 + 2 ÷ 5) × 10
2: (2 + (2 ÷ 5)) × 10
3: (2 × (2 + 5)) + 10
4: 2 × (2 + 5) + 10
5: (2 + 5) × 2 + 10
6: ((2 + 5) × 2) + 10
7: (2 - 5) × (2 - 10)
8: (2 × (5 + 2)) + 10
9: 2 × (5 + 2) + 10
10: (2 ÷ 5 + 2) × 10
11: ((2 ÷ 5) + 2) × 10
12: (2 - 10) × (2 - 5)
13: (5 + 2) × 2 + 10
14: ((5 + 2) × 2) + 10
15: (5 - 2) × (10 - 2)
16: (5 × 10 - 2) ÷ 2
17: ((5 × 10) - 2) ÷ 2
18: 10 + (2 × (2 + 5))
19: 10 + 2 ×(2 + 5)
20: 10 × (2 + 2 ÷ 5)
21: 10 × (2 + (2 ÷ 5))
22: 10 + (2 + 5) × 2
23: 10 + ((2 + 5) × 2)
24: 10 + (2 × (5 + 2))
25: 10 + 2 ×(5 + 2)
26: (10 - 2) × (5 - 2)
27: 10 × (2 ÷ 5 + 2)
28: 10 × ((2 ÷ 5) + 2)
29: 10 + (5 + 2) × 2
30: 10 + ((5 + 2) × 2)
31: (10 × 5 - 2) ÷ 2
32: ((10 × 5) - 2) ÷ 2