Mathematics: The first volume of Grade Three is a book published by An Publishing House in May 1, 2065438 by Yang. There are many other editions, such as Hebei Education Edition, Jiangsu Education Edition, People's Education Edition, etc. This version is one of them.

Primary school is a school where people receive formal education in the primary stage and is an important part of basic education. Generally, 6- 12 years old is the appropriate age for primary school students, with 6 years of primary education and 5 years in some areas.