Beginner Abacus Math: Workbook B: Double Digit Addition & Subtraction (Abacus 101)

By Tong Dazai

This is a traditional abacus math workbook. The book contains double digit addition & subtraction practice worksheets. Quickly learn and experience a new way to see, think and visualize numbers. For children 6 to 12, we recommend adult supervision to watch and supervise the child when they do not understand and needs help. Acquiring a new skill is similar to solving puzzles, it takes time and patience to to master a new way to see, think & visualize numbers. For teens 13 to 18, we recommend practicing abacus for 20 to 30 minutes daily to quickly acquire and master the rules of the traditional abacus. For adults, we recommend practicing abacus for 20 to 30 minutes daily as well. Beginner Introduction to Abacus - ISBN: 978-1520160122 Beginner Rules to Abacus - ISBN: 978-1520306001 Beginner Rules to Abacus II - ISBN: 978-1520437675 (THIS BOOK)

• Format: Paperback
• Language: English
• ISBN: 1520437676
• ISBN13: 9781520437675
• Release Date: January 2017
• Publisher: Independently published
• Length: 32 Pages
• Weight: 0.30 lbs.
• Dimensions: 11.0" x 0.1" x 8.5"