Maria Kristina Sb. Pantoja – illustratör

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.

Somebody has stolen money from the soccer team. Everyone thinks Tom, the team''s big bully, did it, but he says it wasn''t him. Should Adam, Amy, Joy, and Sam believe him and help? They will have to figure out how much money was stolen—and also why! The kids work with dollars and cents to find . . . The Hundred-Dollar Robber.