1. Practice oral calculation, which is definitely the foundation of the foundation. A good verbal calculation may not get a high score, and a poor verbal calculation may not get a high score.

2. Number of questions. To some extent, mathematics needs various forms of exercises, especially problem-solving exercises. This question is also skillful, so I won't say much. But different forms of practice and consolidation are absolutely important. Moreover, if you have a good foundation, you should do more difficult problems and open up more ideas.

3. The habit of doing problems. The habit of doing questions will eventually lead to poor grades, especially if some people don't look at the questions carefully, and the questions will naturally be wrong. Circle keywords and tests are common to all disciplines.