What should I do if I have to brush the math questions nine times?
You must brush the questions nine times. Good at math. Nine-point compulsory exercise is a workbook that junior high school students agree with, and the difficulty of compulsory exercise is moderate. In the book, there are exercises and summaries in each chapter and section to match the progress of the textbook. After a unit, there will be test questions, which can be systematically practiced for different types of questions, thus enhancing students' mathematical ability.