The complete system of the Trachtenberg method of mathematics which makes possible high-speed arithmetical calculations with a remarkable degree of accuracy. This method is not only speedy but simple. Once one has mastered the rules, lightning calculation is as easy as reading a story. It looks like magic, but the rules are based on sound logic.
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The complete system of the Trachtenberg method of mathematics which makes possible high-speed arithmetical calculations with a remarkable degree of accuracy. This method is not only speedy but simple. Once one has mastered the rules, lightning calculation is as easy as reading a story. It looks like magic, but the rules are based on sound logic.
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Add this copy of Trachtenberg Speed System of Basic Mathematics to cart. $80.17, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Hialeah, FL, UNITED STATES, published 2000 by Doubleday.
Add this copy of The Trachtenberg Speed System of Basic Mathematics to cart. $15.56, good condition, Sold by John C. Newland rated 4.0 out of 5 stars, ships from Cheltenham, Glos., UNITED KINGDOM, published 1984 by BCA.
Add this copy of The Trachtenberg Speed System of Basic Mathematics to cart. $39.95, fair condition, Sold by HPB-Red rated 5.0 out of 5 stars, ships from Dallas, TX, UNITED STATES, published 1982 by Praeger.
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Add this copy of The Trachtenberg Speed System of Basic Mathematics to cart. $78.78, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Hialeah, FL, UNITED STATES, published 1982 by Praeger.
Add this copy of The Trachtenberg Speed System of Basic Mathematics to cart. $113.80, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 1982 by Praeger.
Add this copy of The Trachtenberg Speed System of Basic Mathematics to cart. $117.58, new condition, Sold by GridFreed rated 5.0 out of 5 stars, ships from North Las Vegas, NV, UNITED STATES, published 1982 by Praeger.
Add this copy of The Trachtenberg Speed System of Basic Mathematics to cart. $133.56, new condition, Sold by Ria Christie Books rated 5.0 out of 5 stars, ships from Uxbridge, MIDDLESEX, UNITED KINGDOM, published 1982 by Praeger.
Add this copy of The Trachtenberg Speed System of Basic Mathematics to cart. $26.96, very good condition, Sold by Tracey's Book Shelf, LLC rated 5.0 out of 5 stars, ships from Rocky Mount, NC, UNITED STATES, published 1973 by Bantam Books.
