Excellent experts and textbooks are basically synchronized, and exercises are consolidated on the basis of book knowledge. It is very helpful for students to lay a good foundation.

QD Qingdao Edition "Experts on Improving Mathematics in Xue Dian Primary School in Tongcheng" is a book published by Fujian Children's Publishing House on 20 18. The authors are Zhu Haifeng and Wen Zhu.