There are historical reasons. Versions are different books produced by different forms of editing, copying, carving, typesetting or binding of the same book. There are historical reasons for the different versions of mathematics books in Nanping City and Minhou County, and the teaching materials are not unified all over the country. There are different versions of mathematics textbooks in the same province and city. First of all, this is caused by historical reasons. The diversified development policy of one syllabus and many textbooks has been implemented for more than 30 years, which cannot be simply attributed to different regional development.