How to increase number fact speed, accuracy, and comprehension with multiplication-division generalizations
By: [by Gilbert S. Macvaugh, Jr., and G. S. Macvaugh]
Contributors: Macvaugh, Gilbert Stillman, 1902- joint author.
Publisher: Arithmetic Clinic
Published: 1956
Place of publication: Chevy Chase, Md
Language: eng
Number of pages: 200
Subjects: Multiplication.; Division.
Notes: Cover title.