Imaginary Abacus - Instruction Book: A Mind Math Step-By-Step Guide to Addition and Subtraction Using an Imaginary Japanese Abacus (Soroban).

by Paul Green

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  • ISBN10 197804349X
  • ISBN13 9781978043497
  • Publish Date 15 October 2017 (first published 10 January 2017)
  • Publish Status Active
  • Imprint Createspace Independent Publishing Platform
  • Format Paperback (US Trade)
  • Pages 102
  • Language English