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Book Description paperback. Condition: New. Paperback. Pub Date: 2011 Jun Pages: 117 Publisher: Machinery Industry Press God Machine Miaosuan must exam including oral calculation mental arithmetic speed counting. simple calculation . application questions . will exam . & ldquo ; fallibility title calculation problems. Mathematical Olympiad title. Grades 1-6 containing each a book. which title. will exam and easy wrong title plus a small rise in early total review. a total of 39 volumes. Will exam The introduction of new varieties. Must. Seller Inventory # CC006510