I need some math puzzles to sharpen my math skills.

来源: sportwoman 于 2012-05-09 05:01:04 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (97 bytes)
本帖于 2012-05-10 17:52:06 时间, 由版主 林贝卡 编辑

My brain needs to be teased, and welcome to tease me as well! :))

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