Not difficult. High school mathematics belongs to the same difficulty coefficient of high school. The high school mathematics textbook used by Chunteng International High School is issued by the Education Bureau, just like other high schools. As long as you listen carefully, high school mathematics is not difficult. Chongqing Bashu Ivy League School is a K 12 one-stop high-end private international school directly founded by Chongqing Bashu Middle School.