Question

用2.2.5.10 四个数怎么算最后得24

Answer 1

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

三十二种方法，采纳吧

Answer 2

（10-2）乘以（5-2）=8乘以3=24

Answer 3

2x（2+5）+10=24

追答

采纳吧

Answer 4

2*(2+5)+10=25

追答

=24
按错了。。。

=2*7+10
=14+10
=24

Answer 5

（5-2/10）*5=24