Imaginary Abacus - Workbook: A mind math step-by-step guide to addition and subtraction using an imaginary Japanese abacus (Soroban). - Paperback
by Paul Green
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Language:EnglishPublisher:Createspace Independent Publishing PlatformISBN-13:9781542357227ISBN-10:1542357225UPC:9781542357227Book Category:Education, MathematicsBook Subcategory:Learning Styles, Counting & NumerationSize:11.00 x 8.50 x 0.26 inchesWeight:0.6702Product ID:SCAK7V0FTR
Imaginary Abacus - Workbook: A mind math step-by-step guide to addition and subtraction using an imaginary Japanese abacus (Soroban).
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...
Language:EnglishPublisher:Createspace Independent Publishing PlatformISBN-13:9781542357227ISBN-10:1542357225UPC:9781542357227Book Category:Education, MathematicsBook Subcategory:Learning Styles, Counting & NumerationSize:11.00 x 8.50 x 0.26 inchesWeight:0.6702Product ID:SCAK7V0FTR
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