Seller: liu xing, Nanjing, JS, China
paperback. Condition: New. Paperback. Pub Date :2014-01-01 Pages: 122 Language: Chinese Publisher: Nanfang Daily Press primary math problems port operator card: Grade 6 (Vol.2) (R version) is closely linked to the latest math textbook content. title type of difficulty with math textbooks each volume is consistent not only focus on the textbook major and difficult knowledge assessment. but also focus on improving students' oral calculation. mental arithmetic. arithmetic and other speed computing power. Accordance with t. Seller Inventory # BX072687