Step right up to the Math Circus! Watch the Quidget Family and the Subtractobats perform high-flying feats of mathematics! In this astounding story, Leap, Lily, Tad and wacky Professor Quigley train numbers to count, add and subtract in a series of amazing circus acts. Numbers and Quidgets fly from trampolines, trapezes and cannons as they teach early mathematical concepts. As with all "LeapFrog" DVDs, humorous songs add to the fun and help reinforce educational concepts in an amusing and memorable way. Trailers. Learning Game.