What edition does Qingdao Senior High School Mathematics Textbook belong to?

Published by Qingdao Publishing House, Qingdao Edition.

The May 4th system in the second volume of Grade Two of Qingdao Edition mainly includes the knowledge points of addition and subtraction within 10,000, the understanding of grams and kilograms, and the multiplication of two digits by one digit.

The second volume of the second grade of Qingdao Edition, The May 4th Movement System, edited by Shandong Teaching and Research Office. It is divided into ten categories and consists of130,000 words.

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