Question

6,2,-7,4组成24（24点游戏）

Answer 1

6-((2*-7)-4)
(6-(2*-7))+4
6/(2+(-7/4))
6-((-7*2)-4)
(6-(-7*2))+4
6/((-7/4)+2)
6+(4-(2*-7))
(6+4)-(2*-7)
6+(4-(-7*2))
(6+4)-(-7*2)
(2-6)-(-7*4)
2-(6+(-7*4))
((2-6)*-7)-4
(2-6)-(4*-7)
2-(6+(4*-7))
(2-(-7*4))-6
2-((-7*4)+6)
(2-(4*-7))-6
2-((4*-7)+6)
(-7*(2-6))-4
4+(6-(2*-7))
(4+6)-(2*-7)
4+(6-(-7*2))
(4+6)-(-7*2)
4-((2*-7)-6)
(4-(2*-7))+6
4-((-7*2)-6)
(4-(-7*2))+6

Answer 2

2-6=-4
-4x-7=28
28-4=24

追问

-1,4,-7,7能组成吗？列出来

追答

-1+(-7)=-8
4-7=-3
-3x-8=24