Annotation: 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 school key.