There is a great difference in the difficulty between junior high school mathematics and primary school mathematics. Elementary school mathematics basically depends on intuition. As long as you learn to calculate well and master the understanding of basic application problems, there are not many knowledge points in math exams. As long as you learn these well, you should be able to master almost everything. But junior high school mathematics needs to understand the topic, and we need to turn it into a mathematical model and then calculate it mathematically.

Junior high school mathematics knowledge is very detailed, not as straightforward and simple as primary school. Sometimes junior high school mathematics can't master the knowledge points well, and even you don't know which knowledge points to assess when you see the questions. It is particularly important to find the right way to learn mathematics, so the difficulty of junior high school mathematics is very different from that of primary school mathematics.