1, prepare the wrong book. If you want to improve your math scores, you must prepare an error book for yourself. Questions that can't be done or key questions that are easy to make mistakes, even key questions in the exam, can be recorded in the correction book. Good memory is not as good as writing, and brain space is limited. We must form the good habit of accumulating wrong questions. You can look at the typical questions you have accumulated in every exam!

2. Memorize all kinds of problem-solving formulas and skills. Many formulas and conclusions are often used in solving mathematical problems, such as the distance formula between two points, the midpoint coordinate formula, the root formula of binary linear equation, the vertex coordinate formula of quadratic function, the sector area formula and so on. Students who are not skilled in these formulas must carefully review and consolidate these formulas before the exam so as to master them skillfully.