At a school picnic, Eddie uses his knowledge of numbers to outsmart the people who come to his game booth. Is your age more than 5? Is it less than 10? Eddie's got to guess. And he doesn't want to be wrong! Eddie has a booth at the school fair, guessing people's ages. He hasn't guessed wrong yet, but if he does, he gets dunked. Can Eddie keep guessing right -- and keep from getting wet? Comparing whole numbers and understanding what's more and what's less are a big part of Eddie's strategy, and an important math skill for young readers to learn.