Divide and Ride - Mathstart Author:Stuart J. Murphy Scream down the Dare-Devil Coaster and whirl around in the Twin Spin cars! Join the carnival fun as 11 friends divide up to fit on the 2-to-a-seat roller coaster, the 4-to-a-cup teacups ride, and more. Making new friends and practicing pre-division skills have never been so exciting. Full color.