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.

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.

Abacus Mind Math Level 1 Workbook 1 of 2: Excel at Mind Math with Soroban, a Japanese Abacus (Abacus Mind Math - Level - 1 Complete Set: Instruction Book, Workbook 1 of 2, Workbook 2 of 2)

Yellow Mountain Imports Vintage Style Wooden Abacus - 13.9 Inches (35.3 Centimeters) - Professional 17 Column Soroban Calculator with Reset Button - Made