How to Abacus Exercise - 3 Digits 810

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

• | Author: Sheena Chin, Yonhao Fan
• | Publisher: PinGrow Media
• | Publication Date: Oct 05, 2019
• | Number of Pages: 49 pages
• | Language: English
• | Binding: Paperback
• | ISBN-10: 1949622142
• | ISBN-13: 9781949622140