Textbook How to Use a Soroban
Brand name：Textbook How to Use a Soroban
Size：210㎜ｘ300㎜. 52 pages
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If you would like to learn how to use a Japanese abacus, this book is the one. Contents are as follows: 1. How to Read Beads 2. How to Use Your fingers 3. Addition and Subtraction. So many exercises of each step will help you to master addition and subtraction on a soroban.