This workbook covers repeated addition, skip counting, multiplication facts to 10 x 10, the inverse relationship of multiplication and division, commutative property of multiplication, identity property of multiplication, zero property of multiplication, and patterns and sequencing. "Just like our popular pre-school workbooks, Kumon Math Workbooks are based on the Kumon Method, a learning system designed to help each child reach his or her full learning potential. These workbooks are also correlated to state and national standards in order to ensure that the content is appropriate for your child," Adam Hennessy, in marketing and account management for Kumon Publishing, told TDmonthly. Launch date: July 14, 2008.
— Though educational books are not a top seller in his store (he only sells about 12 per month), Kumon is the top line, said  Steven Levy, owner of Toy City in Keene, N.H.
— Gregory Sahagian, owner of Learning Express of Beverly in Beverly, Mass., told TDmonthly in a Fall 2012 survey that they sell 4-5 dozen Kumon books each month, making them one of their top-2 best selling educational products.