So first of all, you should have a correct attitude. You used to get good grades, so you have a good foundation. As long as you speed up the change of thinking mode, you may get higher grades in a few days.
Secondly. Learn to analyze problems. When you come down to a topic, where to start thinking and analyzing, and the accumulation of equal changes in problems and conditions are the most important things for you at present. Change your mind and don't mess with the questions. The sea tactics will kill many people who don't understand mathematics. And there are 120 basic points in 150. So it's not difficult. Secretly tell you, I got more than 60 points in math test in Grade One, and more than 30 points in error test/kloc-0 after Grade Three. Because I didn't check the exam, I handed it in more than half an hour after the exam. Because I still have a bottom in my heart after taking the exam several times. In the year of the college entrance examination, the fill-in-the-blank questions were not written in, so there was still a 120 test. So if you learn to analyze, you won't study too hard in senior three.