优等生必_的速算技巧大全

· 清華大學出版社
5.0
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Ebook
356
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About this ebook

�__速算,不__是_化加、_、乘、除四__算,以及乘方、_方、分_、方程式、方程_的___算法,它_可以在很大程度上_助_生__松____,_立_大的_好__的自信心,__思路,_展思_,___更加_活,_大_更加_明。


本_作_一本_中小_生量身定做的神奇__魔法_,通__例__地介_了20种常用的__速算及巧算的方法,以及26_常____型的解_技巧。并在每_中用_例介_了_些方法和技巧的_用。保_一看就懂,一_就_。_你不禁感慨:如此神奇的算法,_啥__老__有教_我!


_本_改_的不__是同__的__成_,_包括思_方式的改_,_孩子一_始就站在不一_的起_上!

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