At Sifu Faiza's Kung Fu School, kids learn to be strong and fast. They also learn to be smart, cool-headed, and honest. So Joy, Adam, Sam, and Amy are surprised when the key to the school is stolen-as well as all their kung fu gear. Now they'll have to use all kinds of calculations-addition, subtraction, multiplication, and division-to figure out the clues, follow the thieves, and find . . . The Lost Key.

An imaginative mouse who likes to read heroic fantasy novels finds herself on the school math team as it prepares to compete for the coveted Golden Slide Rule.

After a prank is pulled putting dangerous chemicals in the fountain at Stacy's new science magnet school, four friends from Sifu Faiza's Kung Fu School use multiplication and division to help figure out who did it and how.

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.