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The Trachtenberg Speed System of Basic Mathematics

by [Jakow Trachtenberg]

$122.57

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Description

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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Product Details

  • Praeger Brand
  • Feb 4, 1982 Pub Date:
  • 9780313232008 ISBN-13:
  • 0313232008 ISBN-10:
  • 272.0 pages Hardcover
  • English Language
  • 8.5 in * 0.62 in * 5.5 in Dimensions:
  • 1 lb Weight: