One-Stop Clear Multiplication and Division Abacus Mental Arithmetic Training Course

Author: Li Hongzhi Da Bi
Publisher:
Publish Date: 2004-11-01
Features: This book introduces the theoretical knowledge of mental arithmetic using abacus, using abacus-shaped language to explain the entire process of mental arithmetic training. Preschool children can follow the pictures to manipulate the abacus and draw with their fingers, starting from the perspective of entertainment and games to attract children to learn. It allows children to unconsciously learn the skill of mental arithmetic while also fostering their spirit of initiative.