How to Use a Japanese Abacus: A Step-By-Step Guide to Addition, Subtraction, Multiplication, Division, Square Roots and Practical Examples for the J

This pocket edition of the original book, will teach you step-by-step how to perform addition, subtraction, division, multiplication, square roots and practical examples on a Japanese abacus. Great for both children and adults. Clearly explained with text and pictures throughout every stage of your calculation.