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Imaginary Abacus - Workbook: A mind math step-by-step guide to addition and subtraction using an ima
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Publisher
CreateSpace Independent Publishing Platform
Published
Jan 11, 2017
ISBN-13
9781542357227

Imaginary Abacus - Workbook: A mind math step-by-step guide to addition and subtraction using an ima

by Green, Paul
No customer reviews yet ISBN 9781542357227 CreateSpace Independent Publishing Platform

Learn to add and subtract in your head by imagining an abacus to calculate the result. This workbook has 1882 problems with answers. Example: Learn to calculate 415-350+233-155+44 quickly, just by imagining an abacus. To follow this course you will also need: 1) A Japanese abacus (with at least 13 columns). 2)The accompanying Instruction book 'Imaginary Abacus - Instruction book' (sold separately). Clearly written with graphics. Answers to all work is included. Learning to use an abacus is both enjoyable and helps to improve concentration and memory power. Clearly written with graphics. Answers to all work is included. Learning to use an abacus is both enjoyable and helps to improve concentration and memory power.

Product details

BrandCreateSpace Independent Publishing Platform
Pub dateJan 11, 2017
ISBN-101542357225
ISBN-139781542357227
LanguageEnglish
Paperback123.0 pages
Dimensions11 × 0.28 × 8.5 in
Weight1 lb
Last updated 2026-10-03 04:25
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