You'd better practice this workbook for preparing for the math exam. Because this workbook consists of two parts. Part of it is a lecture manual and part is a homework manual. Especially this part of the lecture manual combs the knowledge points in our math books very clearly and thoroughly. Suitable for students to master the knowledge points in books. This sub-topic of the homework manual is also a consolidation and improvement of the knowledge points in the class. The question is comprehensive and novel. The later expansion exercises are also suitable for students. It is suggested that students preview mathematics and choose all-round learning to practice this workbook.