Rapid math without a calculator
Subtitle: [shortcuts for mastering fast addition, subtraction, division, multiplication, fractions and more!]
By: A. Frederick Collins.
Publisher: Citadel
Published: 2006
Place of publication: New York
Language: eng
Number of pages: 120
ISBN-13: 9780806527796
Subjects: Mental arithmetic
Notes: Subtitle from cover.  

Originally published: 1987.  

Includes index.