Question

算24点:5,8,1,2

Answer 1

((5+8)-1)*2
(5+(8-1))*2
(5-(1-8))*2
((5-1)+8)*2
(5-1)*(8-2)
((5+1)*8)/2
(5+1)*(8/2)
(5-(1*2))*8
(5+1)/(2/8)
((5+1)/2)*8
((5/1)-2)*8
((5*1)-2)*8
((5-2)*8)/1
(5-2)*(8/1)
((5-2)*8)*1
(5-2)*(8*1)
(5-2)/(1/8)
((5-2)/1)*8
(5-(2/1))*8
((5-2)*1)*8
(5-(2*1))*8
(5-2)*(1*8)
((8+5)-1)*2
(8+(5-1))*2
8*(5-(1*2))
8*((5+1)/2)
(8*(5+1))/2
8*((5/1)-2)
8*((5*1)-2)
8*((5-2)/1)
(8*(5-2))/1
8*(5-(2/1))
8*((5-2)*1)
(8*(5-2))*1
8*(5-(2*1))
(8-(1-5))*2
((8-1)+5)*2
8/(1/(5-2))
(8/1)*(5-2)
8*((1+5)/2)
(8*(1+5))/2
8*((1*5)-2)
8*(1*(5-2))
(8*1)*(5-2)
(8-2)*(5-1)
8/(2/(5+1))
(8/2)*(5+1)
8/(2/(1+5))
(8/2)*(1+5)
((1+5)*8)/2
(1+5)*(8/2)
(1-5)*(2-8)
(1+5)/(2/8)
((1+5)/2)*8
((1*5)-2)*8
1*((5-2)*8)
(1*(5-2))*8
1*(8*(5-2))
(1*8)*(5-2)
2*((5+8)-1)
2*(5+(8-1))
2*(5-(1-8))
2*((5-1)+8)
2*((8+5)-1)
2*(8+(5-1))
(2-8)*(1-5)
2*(8-(1-5))
2*((8-1)+5)

Answer 2

8除2乘（5+1）

Answer 3

看一楼吧……一楼答案很详细的！