Question

2.5.7.8这几个数字，怎样算得数是24

Answer 1

(5-2)+(13+8)
5-((2-8)-13)
(5-(2-8))+13
5-(2-(8+13))
((5-2)+8)+13
(5-2)+(8+13)
5+(13-(2-8))
(5+13)-(2-8)
((5+13)-2)+8
5+((13-2)+8)
(5+(13-2))+8
((5+13)+8)-2
5+((13+8)-2)
(5+(13+8))-2
5+(13+(8-2))
(5+13)+(8-2)
5+(8-(2-13))
(5+8)-(2-13)
((5+8)-2)+13
5+((8-2)+13)
(5+(8-2))+13
((5+8)+13)-2
5+((8+13)-2)
(5+(8+13))-2
5+(8+(13-2))
(5+8)+(13-2)
13-((2-5)-8)
(13-(2-5))+8
13-(2-(5+8))
((13-2)+5)+8
(13-2)+(5+8)
(13-(2*5))*8
(13+2)/(5/8)
((13+2)/5)*8
13-((2-8)-5)
(13-(2-8))+5
13-(2-(8+5))
((13-2)+8)+5
(13-2)+(8+5)
13+((2*8)-5)
(13+(2*8))-5
((13+2)*8)/5
(13+2)*(8/5)
13-(5-(2*8))
(13-5)+(2*8)
((13-5)*2)+8
(13-(5*2))*8
13+(5-(2-8))
(13+5)-(2-8)
((13+5)-2)+8
13+((5-2)+8)
(13+(5-2))+8
13-(5-(8*2))
(13-5)+(8*2)
((13+5)+8)-2
13+((5+8)-2)
(13+(5+8))-2
13+(5+(8-2))
(13+5)+(8-2)
13+(8-(2-5))
(13+8)-(2-5)
((13+8)-2)+5
13+((8-2)+5)
(13+(8-2))+5
13+((8*2)-5)
(13+(8*2))-5
((13+8)+5)-2
13+((8+5)-2)
(13+(8+5))-2
13+(8+(5-2))
(13+8)+(5-2)
8-((2-5)-13)
(8-(2-5))+13
8-(2-(5+13))
((8-2)+5)+13
(8-2)+(5+13)
8-(2*(5-13))
(8*2)-(5-13)
((8*2)-5)+13
8-((2-13)-5)
(8-(2-13))+5
8-(2-(13+5))
((8-2)+13)+5
(8-2)+(13+5)
8+(2*(13-5))
((8*2)+13)-5
(8*2)+(13-5)
8*((2+13)/5)
(8*(2+13))/5
8+(5-(2-13))
(8+5)-(2-13)
((8+5)-2)+13
8+((5-2)+13)
(8+(5-2))+13
8/(5/(2+13))
(8/5)*(2+13)
8-((5-13)*2)
((8+5)+13)-2
8+((5+13)-2)
(8+(5+13))-2
8+(5+(13-2))
(8+5)+(13-2)
8/(5/(13+2))
(8/5)*(13+2)
8+(13-(2-5))
(8+13)-(2-5)
((8+13)-2)+5
8+((13-2)+5)
(8+(13-2))+5
8*(13-(2*5))
8*((13+2)/5)
(8*(13+2))/5
8+((13-5)*2)
((8+13)+5)-2
8+((13+5)-2)
(8+(13+5))-2
8+(13+(5-2))
(8+13)+(5-2)
8*(13-(5*2))

Answer 2

(5×2-7)×8=24

Answer 3

8×（2×5-7）