Primary school: the application of scores and percentages is the most important. Nowadays, the problems of teaching reform tend to be practical mathematical applications, such as interest rate, tax rate, utilities, subsection calculation and optimal scheme, which are all very important test sites. Then there are some common typical application problems, such as travel problems, engineering problems, proportion problems and so on. These are the most important test sites with the heaviest scores in primary schools. Others are minor problems, such as simple calculations and solving equations.

Junior high school: there are mainly circles and quadrangles in geometry, and functions, equations (fractional equations and quadratic equations), quadratic roots and factorization in algebra. Attention should be paid to the synthesis of geometry and function, as well as practical problems and problems in life.

PS: Are you a teacher? If teachers test professional skills, the training questions can be purely intellectual. If they take part in student competitions or exams, they should pay attention to more difficult problems and real-life problems. I don't know if I am satisfied with this answer. This is the first question I answered after registering today. Please support me more.