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.
language: English
title: The Trachtenberg Speed System of Basic Mathematics
titlecomplete: The Trachtenberg Speed System of Basic Mathematics
genres: Education, Science, Reference, Nonfiction, Mathematics
ratings_count: 266
publisher: Praeger