Clear, concise compendium of about 150 time-saving math short-cuts features faster, easier ways to add, subtract, multiply, and divide. Each problem includes an explanation of the method, a step-by-st...
Short-Cut Math
- 作者： Gerard W. Kelly
- 出版社： WWW.Snowballpublishing.com
- 出版日期： 2012-05-03
- ISBN碼： 9781607964391
- 編號： 1001294884170206
$ 230 元
原價 270
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$230