1. My first math series-by Wu Wenjun.
2. "Complete Solution of Primary School Students' Olympiad Mathematics" series-Author: Li Lin
3. "Complete Solution of Primary School Mathematics Competition" series-Author: Li Lin
4. "Primary School Mathematical Thinking Training" series-Author: Li Lin
5. "Primary School Olympic Mathematics Question Bank" series-Author: Li Lin
6. Series of "Elementary School Mathematics Expansion Question Bank"-Author: Li Lin
7. "Primary School Mathematical Thinking Development" series-Author: Li Lin
8. "Primary School Olympic Mathematics Expansion Question Bank" series-Author: Li Lin
9. "Primary School Mathematical Thinking Development" series-Author: Li Lin
10. "Primary School Olympic Mathematics Expansion Question Bank" series-Author: Li Lin
These books are aimed at elementary school students' mathematical enlightenment. They are rich in content and easy to understand. They can help children to establish mathematical thinking and improve their ability to solve problems.