Download or read book How to Abacus Exercise - Little Friends written by Sheena Chin and published by . This book was released on 2019-10 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three groups of Friends come to help you learn abacus. Here is the Little Fiends team containing 1, 2, 3, 4. Follow the formulas and practice the exercises, you'll be a pro of abacus in no time. Don't forget Big Friends and Mixed Friends. Also How to Abacus Exercise has a series of exercises for you to sharpen your abacus and mental math skills. Be sure to check them all.