2. Setting unknowns: For complex mathematical problems, we can set unknowns and then solve them through equations.
3. Using formulas: For some basic mathematical problems, we can directly use formulas to solve them, such as area formula and volume formula.
4. Logical reasoning: For some mathematical problems with strong logic, we can find out the answers through logical reasoning.
Step-by-step problem solving: For some complex mathematical problems, we can break them down into several simple small problems and then solve them one by one.
6. Use reduction to absurdity: For some problems that cannot be directly proved, you can try to use reduction to absurdity, assume that the original proposition is not established, and then deduce the contradiction, thus proving the correctness of the original proposition.
7. Using symmetry: For some geometric problems, we can use symmetry to simplify the problem and reduce the amount of calculation.
8. Use induction: For some series problems, induction can be used to find out the law of series and solve the problem.
9. Using algebraic methods: For some complicated mathematical problems, we can turn them into algebraic problems and then solve them by solving equations.
10. Using probability theory: We can use probability theory to solve some problems involving random events.