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出版AoPS Incorporated, 2014-04
ISBN19341245329781934124536
URLhttp://books.google.com.hk/books?id=RsT-oAEACAAJ&hl=&source=gbs_api
註釋"Beast Academy is a series of illustrated textbooks and workbooks from the math beasts at Art of Problem Solving. Together with the companion website, www.BeastAcademy.com, Beast Academy provides a rigorous, challenging, engaging, and fun curriculum for aspiring math beasts in grades 2-5. This is Practice 4B in a four-book series for fourth grade."--Back cover