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Book Description paperback. Condition: New. Paperback. Pub Date: 2011 Jun Pages: 124 Language: Chinese in Publisher: Longmen Book Shop big splash synchronous calculation exercises every day: the port operator Figure line introduces mathematics (grade 1) (PEP): Training calculation skills. culture of computing power to reduce the computational lose points. speed increase do title. Contents: First. one of the best race with 1. How much the same. Length 3. Than the height 4. Comparison and comprehensive training. 1 to 5 of the knowledge p. Seller Inventory # CC023210