Since math is not good, make up for it first, and finish a set of math tutorial books in summer vacation, mainly to check for leaks and fill gaps to ensure that math in grade three can keep up. You don't have to take the midterm exam. The mid-term exam is only a simulation, mainly to master the basic knowledge. The counseling book suggests that you consult your teacher, who has known what books are more efficient for so many years. Better keep a clear head. There is still plenty of time. (I used to be in No.1 Middle School)