Break the boredom barrier with centuous math
Subtitle: mathematical ticklers, teasers, tricks and twisters designed to titillate and delight
By: Marilyn J. Gellis.
Publisher: Thinkisthenics
Published: 1973
Place of publication: Palm Springs, CA
Language: eng
Number of pages: 76
Subjects: Mathematics -- Problems, exercises, etc.; Mathematics -- Study and teaching (Elementary).
Other titles: Centuous math.