About Us
AbacusKing since 1983
All series of professional abacus mental arithmetic materials, three-year study plan, five-year complete course.
1. International brand authorization
2. Professional Abacus Mental Arithmetic Teacher Training Program
3.International copyright authorization
AIAMA AbacusKing President of the Union Master of abacus Mr. Yang carefully edited “Abacus Mental Arithmetic Basic Textbook and Middle and high-level textbook”.
Contact:
abacusking@hotmail.com