First of all, don't get into the habit of using computers. You know that you are careless and lose points, so you should slow down the speed of doing the problem. Just be careful in calculation and practice more at ordinary times. Math is just doing more. Write an equation and have a look. It won't take you too long. Check whether you copied it wrong. You can try. The checking calculation on the draft paper doesn't have to be neatly written, but it can't be too sloppy. If you write in order, you can recognize it. If you make a mistake, you can find it. You don't need to count it, but you can find problems from the draft and correct them in time.

2. sort out the wrong set of questions. Many students often make mistakes because of carelessness, but they don't analyze their mistakes carefully, so it is difficult to learn from them. When correcting the wrong question, it is not where the wrong question is and what the reason is, but just doing it again from beginning to end and doing it right, so it is useless to correct the wrong question. I think we should copy the wrong questions in the wrong set intact and leave the "error file"; Carefully check where the mistake is, and draw a curve under it with a red pen; Find out the cause of the mistake and write it down. To be specific, is the concept unclear or the formula wrong, unclear or sloppy calculation. Don't just write the word "sloppy" for sloppy mistakes. Write clearly how sloppy it is, whether to copy "+"as "-"or "3" as "5". The more specific the better. Finally, correct the mistakes and write the correct answers. Calculate the problem, do it once, and then do it again (don't look at the answers you got by doing it yourself before)

Write out every step, don't just use your head, finish the problem over and over again!

Come on! Good luck! Improve your grades as soon as possible! ! !