用4.5.7.9.四个数字列算式得24?
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4乘以7-9+5=24
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展开全部
((4*7)+5)-9
(4*7)+(5-9)
(4*7)-(9-5)
((4*7)-9)+5
((4*9)-5)-7
(4*9)-(5+7)
((4*9)-7)-5
(4*9)-(7+5)
5+((4*7)-9)
(5+(4*7))-9
5+((7*4)-9)
(5+(7*4))-9
(5*(7-4))+9
5-(9-(4*7))
(5-9)+(4*7)
5-(9-(7*4))
(5-9)+(7*4)
((7-4)*5)+9
((7*4)+5)-9
(7*4)+(5-9)
(7*4)-(9-5)
((7*4)-9)+5
(7*(9-5))-4
((9*4)-5)-7
(9*4)-(5+7)
9-((4-7)*5)
((9*4)-7)-5
(9*4)-(7+5)
9-(5*(4-7))
((9-5)*7)-4
9+(5*(7-4))
9+((7-4)*5)
请采纳,谢谢
(4*7)+(5-9)
(4*7)-(9-5)
((4*7)-9)+5
((4*9)-5)-7
(4*9)-(5+7)
((4*9)-7)-5
(4*9)-(7+5)
5+((4*7)-9)
(5+(4*7))-9
5+((7*4)-9)
(5+(7*4))-9
(5*(7-4))+9
5-(9-(4*7))
(5-9)+(4*7)
5-(9-(7*4))
(5-9)+(7*4)
((7-4)*5)+9
((7*4)+5)-9
(7*4)+(5-9)
(7*4)-(9-5)
((7*4)-9)+5
(7*(9-5))-4
((9*4)-5)-7
(9*4)-(5+7)
9-((4-7)*5)
((9*4)-7)-5
(9*4)-(7+5)
9-(5*(4-7))
((9-5)*7)-4
9+(5*(7-4))
9+((7-4)*5)
请采纳,谢谢
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