ISBN: 9787806641309 - 2021秋68所名校图书 轻松快乐 口算心算速算天天练习簿(4上人教)四年级上册 正版 (1 risultati)

paperback. Condizione: New. Paperback. Pub Date: October 2011 Pages: 90 Language: Chinese in Publisher: Changchun Publishing House oral calculation the mental arithmetic Speed ??Operator A simple calculation of Since listing. the market feedback has been good. in order to make this book better quality. more in line with the majority of students. teachers and parents. and this time we were substantially revised and improved quality. Amendment strictly in accordance with the various versions of textbooks on the contents o.…