Mathematical fairy tales have issued a general mobilization order! This series is published by 2 1 century publishing house. * * * has five series and 24 works, and has built a huge kingdom of interesting mathematics. The first to introduce Professor Li Yupei? The latest masterpiece "The Prince of Love and the Ghost King" has two volumes, and the rewritten work "Mathematical Raiders" has eight volumes. This mathematical kingdom is full of exciting adventures and detective stories. If the protagonists want to get out of danger, they must first solve math problems! The solution of the problem also needs the participation of young readers. However, important problem-solving steps and answers are encrypted. Young readers can use their own brains to solve problems, and they can also help themselves with math decryption cards, which greatly improves their reading interest and participation!

This series restores the lively essence of mathematics. Children who don't like math may not like the math part of the story when they watch it, but they love exploring and solving crimes, so they will explore with the detective in the book and unconsciously follow him to use math methods, thus imperceptibly cultivating their mathematical thinking. In all kinds of adventures, if the little hero wants to get out of danger, he must first solve the math problem. There are ten levels in the book, and the answers and answers to ten difficult problems are encrypted. Young readers can use their own brains to solve problems, or they can turn to the math decryption card attached at the back of the book to crack the answers. This not only increases the interest and interactivity of reading, but also makes children feel that mathematics is a powerful tool to solve practical problems, which plays a beneficial auxiliary and supplementary role in their classroom mathematics learning.