Generally speaking, the difficulty coefficient of placement examination is relatively large. Among them, English and mathematics account for a relatively large proportion. Mathematics subject is basically a compulsory content in all key middle schools, and most of the key high schools include some contents of primary school mathematics, but the difficulty coefficient is much higher than that of primary school mathematics, reaching the general level of Olympic mathematics.
The placement test is to select excellent students from the admitted students to enter key classes, so the test will definitely be more difficult.