回复：回复：My daughter's 3rd grade math. Need help...

来源: jinjing 于 2010-01-17 21:02:07 [] [旧帖] [给我悄悄话] 阅读数 : (43 bytes)
本帖于 2010-04-08 17:50:51 时间, 由版主 于德利 编辑
回答: My daughter's 3rd grade math. Need help... 由 JIAYANGGUIZI2 于 2010-01-17 18:40:17

72.It is too difficult for child.8!/(4!*4!)

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• 回复：回复：回复：My daughter's 3rd grade math. Need help... -jinjing- ♀ 给 jinjing 发送悄悄话 (22 bytes) () 01/17/2010 postreply 21:10:41

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