My friend, I will be a freshman soon. I am good at math, science and chemistry, but I am not particularly good at Chinese and English. Unlike Chinese, mathematics has only one answer, and there is no other answer. You still have a week. I don't agree with the above respondents, because if you have been doing problems in class recently, you will develop a "dependent" mentality, that is, "reciting problems" (as I did in primary school), because sometimes you will get exactly the same problems in class, so from now on you will recite several questions that seem to be from previous exams, which is not conducive to your future study in grade three. So the most important thing for you now is to do more extracurricular exercises (simple, which helps to adjust your mentality), memorize the concepts in the book (this is very important, don't ignore it), do simple things in the examination room first, and leave the problems to the end and overcome them one by one. It is also important to look at the topic. Don't ignore the conditions for any question. 80% of the conditions he gives you will be useful, unlike junior high school. Having said that, I also want to tell you that you are a girl. It is difficult for girls to learn science. Mathematics can't be learned in a day or two. Even if you do well in this exam, don't play in the summer vacation. You got it? Mathematics is to do more problems and master the methods of doing them (never recite questions and answers! ! ! ), that's all.

It's a pity that you have to sum up the method. I have graduated from grade three, and I haven't done the chapter on real numbers for a long time. Actually, this chapter is very simple. Just remember: square, take positive, take negative; The square root with "+"before the root sign is the arithmetic square root, and the square root without the plus sign is the square root. Take the number (remember, there are two answers), and the number of roots is greater than or equal to 0; My teacher doesn't seem to talk much about using calculators (I come from Chengdu). This chapter is nothing unusual. Be careful and pay attention to the operation symbols.

Finally, good luck!