"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 book 3C in a four-book series for third grade. Practice book 3C covers variables, division and measurement and includes over 400 challenging problems and puzzles to reinforce the concepts taught in the guide"--Back cover.