The magical mathematical story seals the mascot, and the protagonist in the story is the trumpet jingle and the small arc. The Magic Seal of Mathematical Story is a creative and interesting mathematical picture book, which aims to help children understand mathematical concepts and solve problems through stories. This story takes place in a fantastic digital world, and the protagonist is two lovely mascots-trumpet jingle and small arc. Tinker bell is a clever and curious little number. He likes to explore the mysteries of mathematics and solve mathematical problems. Xiao Hua is his faithful friend and partner. He always takes risks to solve problems with Tinker Bell.