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- Author: Paul Green
- Publisher: CreateSpace Independent Publishing Platform
- Year: 2017
- Pages: 102
- ISBN-10: 197804349X
- ISBN-13: 9781978043497
- Format: 21.6 x 27.9 x 0.5 cm, minkšti viršeliai
- Language: English
- SAVE -10% with code: EXTRA
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Description
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.
EXTRA 10 % discount with code: EXTRA
The promotion ends in 22d.18:46:01
The discount code is valid when purchasing from 10 €. Discounts do not stack.
- Author: Paul Green
- Publisher: CreateSpace Independent Publishing Platform
- Year: 2017
- Pages: 102
- ISBN-10: 197804349X
- ISBN-13: 9781978043497
- Format: 21.6 x 27.9 x 0.5 cm, minkšti viršeliai
- Language: English English
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.
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