My colleague told me that there is a Maisi math shop on the Gold Building in China, East Street, and the business is very good. Her children are tutors there. The additional question this time is full marks. Mathematics was just an additional problem before. I studied fairly before, but I didn't talk about additional questions fairly. Additional questions often got full marks. Last semester, she transferred her doll to Dong Er to study, and now math is also at the top of her class. She introduced me to study in Mase, and indeed my children have become more active, and my math scores have improved a lot this time. Additional questions have made great progress. The score of the additional questions in this exam is 18, and one answer is wrong. The teacher said the idea was right.