Trachtenberg Speed System
Library Home || Full Table of Contents || Suggest a Link || Library Help
|Math Forum, Ask Dr. Math FAQ|
|An introduction to Trachtenberg's system of performing high-speed multiplication, division, addition, subtraction, and square root, all in one's head, with references.|
|Levels:||Elementary, Middle School (6-8), High School (9-12)|
|Resource Types:||Problems/Puzzles, Recreations|
|Math Topics:||Basic Operations, Exponents/Roots|
© 1994-2014 Drexel University. All rights reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.