Ages 3-5. Lovable monsters provide a fun way for youngsters to learn subtraction in this latest entry in the MathStart series. The lively text and animated artwork are a good match for the young audience. Murphy uses bouncy rhymes and simple sentence structure to describe how the musical chairs game works: "Six fuzzy monsters want a seat--see them rock to a monster beat. Five monster chairs all in a line. Sit in one and you'll be fine!" Meanwhile, Nash's silly pictures show the monsters in actio ...