5x5-5/5=24

来源: 丁庄秀园 于 2008-12-25 19:20:57 [] [博客] [旧帖] [给我悄悄话] 阅读数 : 0 (107 bytes)

(5-5/5-5/5-5/5-5/5)=1 (use 9 of them)
5/5=1 (pair of them)
To make the 1 useless, just multiply them.

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