$Secrets of mental math the mathemagician's guide to lightning calculation and amazing math tricks$
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Secrets of mental math the mathemagician's guide to lightning calculation and amazing math tricks

書目詳細資料
主要作者:	Benjamin, Arthur
其他作者:	Shermer, Michael
格式:	圖書
語言:	English
出版:	New York Three Rivers Press c2006.
主題:	Mental arithmetic > Study and teaching. Magic tricks in mathematics education. Mental calculators.
在線閱讀:	Table of contents only