Joy, Sam, and their friends from the kung fu school use their knowledge of mathematics and whole numbers to discover who stole the keys to the school and used them to steal all the kung fu equipment.
Sam and his friends at the kung fu school use mathematics to solve puzzles about boiling water and melting glass, and figure out the secret to opening a clock that is really a lock while helping Sifu Faiza. In comic book format.
Henry wants to make sure that his older sister Harriet never gets more of anything than he does so he carefully keeps score until Harriet gets a cavity and he gets none and Henry discovers that sometimes zero is better than one.