Learn more about Anzan/Soroban:
- More information about Soroban and Anzan
- SAI Speed Math Academy
- Japanese Abacus Use & Theory
- Japanese Abacus For Kids: A step-by-step guide to addition and subtraction using the Japanese abacus (Soroban)
- Learn to do Math With Soroban a Japanese Abacus: Learn how to add, subtract, multiply, divide and find square roots with this easy to use instruction guide.