Personally, to learn mathematics well, we must first remember all the formulas in the book, which is the first condition.

Then when you do the problem, you can find the formula that matches the problem, and you can bring it in for calculation according to the known conditions of the problem.

Then there is the naval battle. . . . . . Although it is very hard, it is very important to learn math problems well. . . . . In addition, after completing a problem, you can see where the formula is applied. . . . . . . You can gradually form the habit of doing problems: when you see the problems, you can think of formulas related to them. . . . With this feeling, mathematics is basically not difficult.

I hope it helps you.