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How To Calculate Quickly
Product information
Author:
Type: Paperback
ISBN: 9780486202952
Date: 2nd January, 2000
Publisher: Dover Publications
Categories
- Science
Description
Many useful procedures explained and taught: 2-column addition, left-to-right subtraction, direct multiplication by numbers greater than 12, mental division of large numbers, more. Also numerous helpful shortcuts. More than 8,000 problems, with solutions. 1945 edition.