The listing, The Disney "Magic Math Machine" Book has ended.
Great item for the ankle biters, rug rats, crumb snatchers, etc., better known as toddlers! This edition covers addition and subtraction. It's cool the way they put this together. One side is addition, then, you turn it over and around, and it's subtraction. 14 pages each way. The book is 10" X 10". If you want to look up the details about it, the ISBN is 0-7868-3644-X.