Math Commander/Li Yupei. -Wuhan: Hubei Children's Publishing House, March 2009 (Li Yupei Mathematics Story Series)
There are commanders of artillery, army and navy in the army. Have you ever heard of a math commander? Ha, I haven't heard of it! Now Mr Li Yupei will tell you a story about a math commander. Niu Niu, the commander of Mathematics, was the commander of the Kingdom of July 7th, and led 777 soldiers to the Kingdom of August 8th. He met many problems along the way, all related to mathematics knowledge. Only when the problem is solved can he succeed. Want to know what happened in Niu Niu's campaign? What is the final result? Please open the classic math story book written by Mr. Li, and learn math knowledge while reading fairy tales, so as to entertain and learn math happily.
Li Yupei's series of mathematical stories, including Mathematical Zoo, Mathematical Detective 006, Adventures of Mathematical Kingdom, Journey to the West of Mathematics, Mathematical Glasses and Mathematical Wisdom, are all well worth reading.