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Imaginary Abacus - Instruction book: A mind math step-by-step guide to addition and subtraction using an imaginary Japanese abacus (Soroban). - Paperback
$28.49 USD
$28.49 USD
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Imaginary Abacus - Instruction book: A mind math step-by-step guide to addition and subtraction using an imaginary Japanese abacus (Soroban). - Paperback
Imaginary Abacus - Instruction book: A mind math step-by-step guide to addition and subtraction using an imaginary Japanese abacus (Soroban). - Paperback
Imaginary Abacus - Instruction book: A mind math step-by-step guide to addition and subtraction using an imaginary Japanese abacus (Soroban). - Paperback
$28.49/ea		 $0.00
$28.49/ea $0.00

Product Description

by Paul Green (Author)

Learn to add and subtract in your head by imagining an abacus to calculate the result. Example: Learn to calculate 415-350+233-155+44 quickly, just by imagining an abacus.This book will teach you the skills required to firstly use the actual abacus effectively, then how to use an imaginary abacus (also known as a mental abacus). To follow this book you will need: 1) A Japanese abacus (with at least 13 columns). 2) The accompanying workbook 'Imaginary Abacus - Workbook' (sold separately). This useful and impressive skill would be an asset for anyone.

Number of Pages: 102
Dimensions: 0.21 x 11 x 8.5 IN
Publication Date: October 15, 2017
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