Learning Wrap-ups offer a fun and unique way to help students memorize their basic math facts. Students wrap the string from the problem on the left to the answer on the right, and then turn the Wrap-up over to see if they got it right. Use a stop watch to measure improvement and to see how fast they can really go. Choose from Addition, Subtraction, Multiplication, Division, Fractions and even States & Capitals. Each set contains 10 self-correcting keys and cover all the facts for that operation. Sold as a pack of 3 learning wrap-ups multiplication keys sets.