2,4,6,9算24点7种

不能有中括号

用2,4,6,9算24点,共有45种算法。
[﹙4÷2﹚×9]+6
[4×﹙9÷2﹚]+6
4×[9-﹙6÷2﹚]
6+[4÷﹙2÷9﹚]
﹙9-6﹚×﹙2×4﹚
6÷[﹙9÷4﹚-2]
[﹙4×9﹚÷2]+6
﹙4×9﹚-﹙2×6﹚
﹙2×4﹚×﹙9-6﹚
6+[﹙4×9﹚÷2]
[9-﹙6÷2﹚]×4
[9÷﹙2÷4﹚]+6
2×[4×﹙9-6﹚]
6+[9×﹙4-2﹚]
[﹙4÷6﹚+2]×9
﹙9-6﹚×﹙4×2﹚
6-[﹙2-4﹚×9]
2×[﹙9-6﹚×4]
9×[﹙4÷6﹚+2]
[4×﹙9-6﹚]×2
﹙4×2﹚×﹙9-6﹚
﹙9×4﹚-﹙2×6﹚
6+[﹙9÷2﹚×4]
4×[﹙9-6﹚×2]
[2×﹙9-6﹚]×4
9×[2+﹙4÷6﹚]
6+[9×﹙4÷2﹚]
6+[﹙9×4﹚÷2]
[﹙9-6﹚×2]×4
[4÷﹙2÷9﹚]+6
[2+﹙4÷6﹚]×9
[﹙9-6﹚×4]×2
[9×﹙4-2﹚]+6
[9×﹙4÷2﹚]+6
[﹙9÷2﹚×4]+6
﹙4×9﹚-﹙6×2﹚
6+[﹙4÷2﹚×9]
﹙9×4﹚-﹙6×2﹚
[﹙9×4﹚÷2]+6
6-[9×﹙2-4﹚]
[﹙4-2﹚×9]+6
6+[9÷﹙2÷4﹚]
6+[﹙4-2﹚×9]
6+[4×﹙9÷2﹚]
4×[2×﹙9-6﹚]
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第1个回答  2014-03-21
用2,4,6,9算24点,共有45种算法。
[﹙4÷2﹚×9]+6
[4×﹙9÷2﹚]+6
4×[9-﹙6÷2﹚]
6+[4÷﹙2÷9﹚]
﹙9-6﹚×﹙2×4﹚
6÷[﹙9÷4﹚-2]
[﹙4×9﹚÷2]+6
﹙4×9﹚-﹙2×6﹚
﹙2×4﹚×﹙9-6﹚
6+[﹙4×9﹚÷2]
[9-﹙6÷2﹚]×4
[9÷﹙2÷4﹚]+6
2×[4×﹙9-6﹚]
6+[9×﹙4-2﹚]
[﹙4÷6﹚+2]×9
﹙9-6﹚×﹙4×2﹚
6-[﹙2-4﹚×9]
2×[﹙9-6﹚×4]
9×[﹙4÷6﹚+2]
[4×﹙9-6﹚]×2
﹙4×2﹚×﹙9-6﹚
﹙9×4﹚-﹙2×6﹚
6+[﹙9÷2﹚×4]
4×[﹙9-6﹚×2]
[2×﹙9-6﹚]×4
9×[2+﹙4÷6﹚]
6+[9×﹙4÷2﹚]
6+[﹙9×4﹚÷2]
[﹙9-6﹚×2]×4
[4÷﹙2÷9﹚]+6
[2+﹙4÷6﹚]×9
[﹙9-6﹚×4]×2
[9×﹙4-2﹚]+6
[9×﹙4÷2﹚]+6
[﹙9÷2﹚×4]+6
﹙4×9﹚-﹙6×2﹚
6+[﹙4÷2﹚×9]
﹙9×4﹚-﹙6×2﹚
[﹙9×4﹚÷2]+6
6-[9×﹙2-4﹚]
[﹙4-2﹚×9]+6
6+[9÷﹙2÷4﹚]
6+[﹙4-2﹚×9]
6+[4×﹙9÷2﹚]
4×[2×﹙9-6﹚]
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