1. Incomplete understanding of concepts: Mathematics is a basic subject, and many concepts are interrelated. If you don't understand a concept deeply enough, you will easily make mistakes in the subsequent study.

2. Calculation error: Calculation in mathematics is very important, but it is also an error-prone place. For example, operations such as addition, subtraction, multiplication and division, square root and exponent are prone to errors.

3. Inaccurate understanding of the topic: Math topics are often difficult and need to be carefully read and understood. If the understanding of the topic is not accurate, it is easy to make a wrong answer.

4. Wrong use of formulas: There are many formulas in mathematics. If you are unfamiliar with the use of formulas or have an inaccurate understanding, you will easily make mistakes in solving problems.

5. Logical reasoning error: The problem of proof in mathematics needs logical reasoning. If the logical reasoning ability is not strong, it is easy to make mistakes in solving problems.

6. Improper problem-solving methods: There are many methods to solve mathematical problems. If you choose the wrong method, it is easy to get into a dead end and get no correct answer.

7. inattention: math learning requires a high degree of attention and concentration. If you don't concentrate, you will easily make mistakes in solving problems.

8. Improper time management: Senior three students' math learning tasks are heavy, so they need to arrange their time reasonably. If the time management is improper, it will easily lead to the failure to keep up with the learning progress, thus affecting the learning effect.