Hello, you are careless in math, and you always make mistakes in simple questions. Actually, it's because you are too relaxed and don't pay enough attention to simple questions. Psychologically, it has a lot to do with your personality. Usually, you should be outgoing, like new things, like challenging things, don't like sticking to the rules, have innovative spirit, and sometimes even do unexpected things or stick to one pattern. Therefore, when you write a simple math problem, it is easy to be despised because you are challenging and don't do it, and then make mistakes. Moreover, when you check the problems, you will allocate too much energy to the more difficult problems, repeatedly check the more difficult problems, ignore or simply sort out the ideas of simple problems, but you can't find any mistakes. The final result is that the difficult questions are all done right, but the simple questions are often wrong.
If you have such a personality, I suggest you pay more attention to simple questions, carefully check and check yourself during the exam to avoid unnecessary mistakes caused by carelessness.