3个5，1个1这么算24点

操作数为5、5、5和1啊

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

5*(5-1/5)=24
5*(5-(1/5))=24
5*(5-1/5)=24
5*(5-(1/5))=24
(5-1/5)*5=24
(5-(1/5))*5=24
(5-1/5)*5=24
(5-(1/5))*5=24
5*(5-1/5)=24
5*(5-(1/5))=24
5*(5-1/5)=24
5*(5-(1/5))=24
(5-1/5)*5=24
(5-(1/5))*5=24
(5-1/5)*5=24
(5-(1/5))*5=24
5*(5-1/5)=24
5*(5-(1/5))=24
5*(5-1/5)=24
5*(5-(1/5))=24
(5-1/5)*5=24
(5-(1/5))*5=24
(5-1/5)*5=24
(5-(1/5))*5=24
还不错吧！！！

5*(5-1/5)=24
5*(5-(1/5))=24
5*(5-1/5)=24
5*(5-(1/5))=24
(5-1/5)*5=24
(5-(1/5))*5=24
(5-1/5)*5=24
(5-(1/5))*5=24
5*(5-1/5)=24
5*(5-(1/5))=24
5*(5-1/5)=24
5*(5-(1/5))=24
(5-1/5)*5=24
(5-(1/5))*5=24
(5-1/5)*5=24
(5-(1/5))*5=24
5*(5-1/5)=24
5*(5-(1/5))=24
5*(5-1/5)=24
5*(5-(1/5))=24
(5-