Question

2,5,6,8每个数只用一次,算出24,一共有几种方法,分别是什么方法

Answer 1

2×5+6+8=24 5×6+2-8=24 2种

Answer 2

解答如下：
2+(6*5-8)
2-(8-6*5)
(2+6*5)-8
8*(2-(5-6))
8*(2+(6-5))
(2-8)+6*5
6*5-(8-2)
5*(8-2)-6
(6+2)*(8-5)
8*((6+2)-5)
5*2+(8+6)
6+(8+5*2)
8+(6+5*2)
8*(6+(2-5))
8*(6-(5-2))

Answer 3

(2-(5-6))*8
((2-5)+6)*8
2+((5*6)-8)
(2+(5*6))-8
((2*5)+6)+8
(2*5)+(6+8)
((2*5)+8)+6
(2*5)+(8+6)
((2+6)-5)*8
(2+(6-5))*8
2+((6*5)-8)
(2+(6*5))-8
(2+6)*(8-5)
2-(8-(5*6))
(2-8)+(5*6)
2-(8-(6*5))
(2-8)+(6*5)
((5*2)+6)+8
(5*2)+(6+8)
((5*2)+8)+6
(5*2)+(8+6)
((5*6)+2)-8
(5*6)+(2-8)
(5*6)-(8-2)
((5*6)-8)+2
(5*(8-2))-6
((6+2)-5)*8
(6+(2-5))*8
6+((2*5)+8)
(6+(2*5))+8
(6+2)*(8-5)
(6-(5-2))*8
((6-5)+2)*8
6+((5*2)+8)
(6+(5*2))+8
((6*5)+2)-8
(6*5)+(2-8)
(6*5)-(8-2)
((6*5)-8)+2
6+(8+(2*5))
(6+8)+(2*5)
6+(8+(5*2))
(6+8)+(5*2)
((8-2)*5)-6
8+((2*5)+6)
(8+(2*5))+6
8*(2-(5-6))
8*((2-5)+6)
8*((2+6)-5)
8*(2+(6-5))
(8-5)*(2+6)
8+((5*2)+6)
(8+(5*2))+6
(8-5)*(6+2)
8+(6+(2*5))
(8+6)+(2*5)
8*((6+2)-5)
8*(6+(2-5))
8+(6+(5*2))
(8+6)+(5*2)
8*(6-(5-2))
8*((6-5)+2)

Answer 4

2+5x6-8=24

[2-(5-6)]x8=24

2x5+6+8=24

Answer 5

2x5+6+8
2+5x6-8
(2-5+6)x8
(2+6)x(8-5)
5x(8-2)-6
......