Learn how to add, subtract, multiply, divide and find square roots with this easy to use instruction guide. There are many sample problems with step-by-step ins

This book will teach you step-by-step how to perform addition and subtraction on a Japanese abacus. Clearly explained with text and colored pictures throughout

This handy guide will take abacus users from beginner to master level in a very short time. Though the Japanese abacus may appear mysterious or even primitive,

"This is a major historical work that, in the field of Japanese imperialism, will set a standard for careful and comprehensive analysis. The Abacus and the Swor