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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).

af Paul Green
Imaginary Abacus - Instruction book af Paul Green
Bag om Imaginary Abacus - Instruction book

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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  • Sprog:
  • Engelsk
  • ISBN:
  • 9781978043497
  • Indbinding:
  • Paperback
  • Sideantal:
  • 102
  • Udgivet:
  • 15. oktober 2017
  • Størrelse:
  • 216x279x5 mm.
  • Vægt:
  • 259 g.
  • 8-11 hverdage.
  • 9. december 2024
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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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