Zero, Zilch, Nada: Counting to None

Colorful illustrations and a clever storyline introduce the concept of counting up to and down from 100 by tens, fives, twos and singles, so that young readers can help Harry solve his math dilemma at the Four Color Balloon Factory where Mr. Huffy, Harry's new boss, instructs him to blow up 100 balloons for Mrs. Doopido's birthday party.