Set in 1960's Cleveland, Ohio, follow 6th-grader Rufus Mayflower as he and his friends use real-life mathematical problems to help their budding business making toothpaste succeed.
RIF's 60th Anniversary Highlighted Book for 1973. Billy decides to participate in a bet, where he has to eat 15 worms supplied by his opponent. Though he can use any condiment he wants, they're still hard to get down.