24点2.3.7.9组成20个 5
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2*((3*7)-9)
2*((7*3)-9)
3/(2/(7+9))
(3/2)*(7+9)
3/(2/(9+7))
(3/2)*(9+7)
(3*(7-2))+9
((3*7)-9)*2
3*((7+9)/2)
(3*(7+9))/2
3*((9+7)/2)
(3*(9+7))/2
((7-2)*3)+9
((7*3)-9)*2
(7+9)/(2/3)
((7+9)/2)*3
((7+9)*3)/2
(7+9)*(3/2)
9-((2-7)*3)
9-(3*(2-7))
9+(3*(7-2))
9+((7-2)*3)
(9+7)/(2/3)
((9+7)/2)*3
((9+7)*3)/2
(9+7)*(3/2)
2*((3*7)-9)
2*((7*3)-9)
3/(2/(7+9))
(3/2)*(7+9)
3/(2/(9+7))
(3/2)*(9+7)
(3*(7-2))+9
((3*7)-9)*2
3*((7+9)/2)
(3*(7+9))/2
3*((9+7)/2)
(3*(9+7))/2
((7-2)*3)+9
((7*3)-9)*2
(7+9)/(2/3)
((7+9)/2)*3
((7+9)*3)/2
(7+9)*(3/2)
9-((2-7)*3)
9-(3*(2-7))
9+(3*(7-2))
9+((7-2)*3)
(9+7)/(2/3)
((9+7)/2)*3
((9+7)*3)/2
(9+7)*(3/2)
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