Perfect for use at home, with tutors and in the classroom. They are perfect for small groups and math centers. Allows for fun practice that leads to automatic recall of basic facts. Great for hands on practice. Self correcting, so it makes checking your answer easier. This kit includes one set each of Addition, Subtraction, Multiplication, Division, and Fractions. This kit is a great value for home school families, tutors, parents or teachers who deal with students of varying degrees of ability and skill level.