This product is designed so that as students sing along, they can quickly learn sums up to 18 and differences from 18. The CD runs approximately 40 minutes. "Upbeat music, energetic performers and a delayed answer section helps students learn facts quickly. [This is] one of our top audio best sellers," Cindy Burleson, communications coordinator for Rock 'N Learn, told TDmonthly. It has received the following awards: Parent’s Guide to Children’s Media and Dr. Toy's 10 Best Educational Products. Launch date: 2003.