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A system for doing multiplication and addition quickly through the use of mental "tricks."
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Previews available in: English
Subjects
Addition, Multiplication, Mental arithmeticEdition | Availability |
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1
Instant math, based on the Trachtenberg speed system of basic mathematics.
1962, Doubleday
in English
- [1st ed.]
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- Created April 1, 2008
- 5 revisions
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September 28, 2020 | Edited by MARC Bot | import existing book |
May 22, 2020 | Edited by CoverBot | Added new cover |
July 31, 2014 | Edited by ImportBot | import new book |
December 14, 2009 | Edited by WorkBot | link works |
April 1, 2008 | Created by an anonymous user | Imported from Scriblio MARC record |