1.2.4.9加减乘除四个符号组合起来等于24?
3个回答
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((1+9)*2)+4
(2*(1+9))+4
2*(4-(1-9))
2*((4-1)+9)
2*((4+9)-1)
2*(4+(9-1))
2*(9-(1-4))
2*((9-1)+4)
(2*(9+1))+4
2*((9+4)-1)
2*(9+(4-1))
(4-(1-9))*2
((4-1)+9)*2
4+((1+9)*2)
4+(2*(1+9))
4+(2*(9+1))
((4+9)-1)*2
(4+(9-1))*2
4+((9+1)*2)
4*((9-1)-2)
4*(9-(1+2))
4*((9-2)-1)
4*(9-(2+1))
((9-1)-2)*4
(9-(1+2))*4
((9+1)*2)+4
(9-(1-4))*2
((9-1)+4)*2
((9-2)-1)*4
(9-(2+1))*4
((9+4)-1)*2
(9+(4-1))*2
----END----
(2*(1+9))+4
2*(4-(1-9))
2*((4-1)+9)
2*((4+9)-1)
2*(4+(9-1))
2*(9-(1-4))
2*((9-1)+4)
(2*(9+1))+4
2*((9+4)-1)
2*(9+(4-1))
(4-(1-9))*2
((4-1)+9)*2
4+((1+9)*2)
4+(2*(1+9))
4+(2*(9+1))
((4+9)-1)*2
(4+(9-1))*2
4+((9+1)*2)
4*((9-1)-2)
4*(9-(1+2))
4*((9-2)-1)
4*(9-(2+1))
((9-1)-2)*4
(9-(1+2))*4
((9+1)*2)+4
(9-(1-4))*2
((9-1)+4)*2
((9-2)-1)*4
(9-(2+1))*4
((9+4)-1)*2
(9+(4-1))*2
----END----
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