How to Abacus Exercise - 3 Digits 810

By Yonhao Fan

Having learned abacus formulas, it's time to show off your skills in solving number problems. When you feel comfortable working on three and six 3-digit numbers, you should move on to eight and ten 3-digit arithmetic. " How to Abacus Exercise" has more exercise books waiting for you to practice: 2 digits 34, 2 digits 567, 2 digits 810, 3 digits 36 and 3 digits 810. Check them all out

• Format: Paperback
• Language: English
• ISBN: 1949622142
• ISBN13: 9781949622140
• Release Date: October 2019
• Publisher: Pingrow Media
• Length: 50 Pages
• Weight: 0.31 lbs.
• Dimensions: 0.1" x 8.5" x 11.0"