For example:

Yaya and Mao Mao have some beautiful glass balls. Yaya gave Mao Mao 20 glass balls, and the number of two glass balls was the same. How many more glass balls does Yaya have than Mao Mao?

Analysis: 20×2=40 (pieces)

It turns out that Yaya has 40 more glass balls than Mao Mao.

Mathematics is a very basic subject, and the courses in each semester may be interlocking. If you don't lay a good foundation, it may lead to a slump in your math scores in the future. Therefore, parents should pay attention to their children's mathematical foundation in the first grade to ensure that their children can understand the specific knowledge points told by the teacher in every class. When you take an exam, you can't be completely ignorant of the basic topics. As for whether it is 95 or 98, don't worry too much!