I estimate that your math level is average, and you lack self-confidence, which is very bad. What you said is the same as when I was in high school. I have always suspected that there is something wrong with my own problems and feel that others are right. You should lay a solid foundation in mathematics, keep mathematical formulas in mind and use them skillfully. You should also be impressed by some classic examples. . . It is really necessary to build up self-confidence. Later, I gradually established confidence and overcame my fear. Math is getting better and better, and I got 138 in the college entrance examination. Nothing is impossible. Let's go It's normal that you can't finish the math problem you said. It should be 130, not 150, because the difficulty of the teacher's question is different, so as to open the students' grades. When you write down the math problems, you should first look at what problems there are, so that you can go from easy to difficult, and don't take this problem. Get the score you deserve, be careful and make less negligent mistakes, so that the total score of mathematics will not be too small. Good luck.