Learning and Memorizing Math Facts. Like its little brother Add/Subtract, Bumper Car Math Multiply/Divide helps drill Multiplication facts 9 x 9 and division facts to 81 ÷ 9 while claiming and bumping your opponent's cars off their spots. The object of the game is to capture the cluster of bumper cars and bumper buses, scoring as many points as you can. Players will become fluent with mental computation and have fun doing it. Game may be played using multiplication or division. So easy to play.