The best thing about mathematics is that it doesn't need you to understand how those formulas come from, just remember and use them flexibly. So look at the back first and never think about why 1+ 1=2. Junior high school mathematics, 1+ 1=2 is the truth.
Junior high school mathematics textbooks are well compiled, including knowledge points, examples and exercises. Look at the knowledge points first, then at the examples, try to solve the examples with your own knowledge, and then see how the answers to the examples are different from yours. Review the knowledge points after reading the examples, and finally do exercises to consolidate the knowledge.
Mathematics means that as long as you pass a point, the knowledge points behind you are particularly easy to pass. Therefore, it is extremely urgent to lay a solid foundation.
Pay attention to the knowledge points you don't understand and ask the teacher more, but don't get into the dead end. The formula is the truth. After mastering the basics, brush more questions, do them first and then look at them. There are only a few questions in junior high school mathematics, and the numbers are changing.
As long as you persist, your math scores will improve.