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4578怎么算等于24

解:∵已知4、*、÷使等式成立 最终结果等于24 ∴4 * [8 - (7 - 5)] = 4 * (8 - 2) = 4 * 6 = 24 (5 + 7)* (8 ÷ 4)= 12 * 2 = 24 4 + 5 + 7 + 8= 9 + 7 + 8 = 16 + 8 = 24

4+5+7+8=24

((4+5)+7)+84+((5+7)+8)(4+(5+7))+84+(5+(7+8))(4+5)+(7+8)4*(5-(7-8))4*((5-7)+8)((4+5)+8)+74+((5+8)+7)(4+(5+8))+74+(5+(8+7))(4+5)+(8+7)4*((5+8)-7)4*(5+(8-7))((4+7)+5)+84+((7+5)+8)(4+(7+5))+84+(7+(5+8))(4+7)+(5+8)((4+7)+8)+54+((7+8)+5)(

(7+5)*8÷4 = 24

4+5+7+8=24(5+8-7)*4=24(5+7)*8÷4=24(8+4)*(7-5)=24

4*(8-7+5)=24(7+5)/4*8=244+5+7+8=24(4+8)*(7-5)=24(7+5)*(8/4)=24

4+5+7+8=24.

这个题直接全用加号就可以的呀

1: 4+5+7+8=242: (5+7)/4*8=243: (7-5)*(4+8)=24

24点计算4*(5-(7-8))4*(5+(8-7))4+(5+(8+7))5+(4+(8+7))4*((8+5)-7)4+(7+(8+5))7+(4+(8+5))4*(8+(5-7))4*(8-(7-5))4+(8+(7+5))8*(7+5)/48+(4+(7+5))8/4*(7+5)(8+4)*(7-5)(8+4)+(7+5)5+(7+(8+4))7+(5+(8+4))(7+4)+(8+5)5+(8+(7+4))8+(5+(7+4))(5+4)+(8+7)7+(8+(5+4))8+(7+(5+4))

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