帮忙算一下24点

Question

5.5.5.1
10.10.4.2

Answer 1

一、
1. 常规方法：
5*(5-1/5)
2. 几个特殊运算：
(5-5/5*1)!=4!=4*3*2*1=24
(5-1*5/5)! 1*(5-5/5)!
(5-1)!*5/5 5!/(5+5mod1)=5!/(5+0)
√5 * √5 *5-1
二、类似
10 * (2+4/10)

Answer 2

10 10 4 2:
1: 10 × (4 ÷ 10 + 2)
2: 10 × ((4 ÷ 10) + 2)
3: 10 × (2 + 4 ÷ 10)
4: 10 × (2 + (4 ÷ 10))
5: (4 ÷ 10 + 2) × 10
6: ((4 ÷ 10) + 2) × 10
7: (2 + 4 ÷ 10) × 10
8: (2 + (4 ÷ 10)) × 10

5 5 5 1:
1: (5 - 1 ÷ 5) × 5
2: (5 - (1 ÷ 5)) × 5
3: 5 × (5 - 1 ÷ 5)
4: 5 × (5 - (1 ÷ 5))