These kits have been designed to fit the needs of the resource center or library. It’s perfect for working with small groups of students with varying degrees of ability. Includes 6 sets each of addition, subtraction, multiplication, division and fractions, for a total of 30 sets. You’ll also receive the 4 corresponding Wrap-up Rap CDs as well as our Math Facts teaching manual, a stopwatch, and four of our new 32 page Math Mastery books.