Primary School*******************

This book is really good! It is compiled based on the BS version of the fifth grade mathematics textbook, Volume 2, and is in sync with children's learning progress. There are a large number of calculation questions in the book, and the question types are also very rich, and it also teaches many practical calculation methods. I think this is very helpful for children to improve their calculation skills. Just like my child, he always made mistakes in calculations before, but after using this book, he has made great progress. I also recommended it to my friends, and everyone thought it was very good.