When the Math Fairy leaves Moose in charge for the day, he figures making a few little changes can't hurt. Who needs plus signs, anyway? And graphs can't be THAT important... But he soon discovers that making small changes can lead to big problems! From upsetting the Star Fairy to causing chaos in a pie factory, Moose's attempts to fix things only make them worse. In the end, with the comfort of the Math Fairy, he is able to fix his mistakes- and learn a little something, too.