The Trachtenberg speed system of basic mathematics /

The Trachtenberg speed system of basic mathematics /

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书目详细资料
主要作者: Trachtenberg, Jakow, 1888-1951
其他作者: McShane, Rudolph, Cutler, Ann
格式: 图书
语言:English
出版: London : Pan, 1965 c1960.
主题:
Trachtenberg, Jakow, > 1888-
Arithmetic.
Mental arithmetic.
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The Trachtenberg speed system of basic mathematics.
图书
由 Cutler, Ann
出版 1960
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