How to Abacus Exercise - 1 Digit - Paperback
How to Abacus Exercise - 1 Digit - Paperback
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by Sheena Chin (Author), Yuenjo Fan (Author)
Having learned abacus formulas, it's time to show off your skills in solving number problems. Let's start with 6 one-digit numbers and go all the way to 10 one-digit numbers. Also," 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.