This fascinating guide takes readers step-by-step through the author's innovative "9-10 Method" of subtraction. Upon applying the easy-to-learn principles presented in the guide, readers will be able to solve subtraction problems with one or more subtrahends with a speed and accuracy that will make the process of subtraction seem truly effortless.
The guide includes sample problems and answers.
Sublime Subtraction: A Practical Guide to Using the 9-10 Method
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Book Details
Author(s)Douglas Damron
ISBN / ASINB00FKKBRT8
ISBN-13978B00FKKBRT2
Sales Rank1,777,995
MarketplaceUnited States 🇺🇸