Learning Wrap-Ups Basic Math, Subtraction, Grades 2 to 6 Learning Wrap-ups offers a fun and unique way to help students memorize their math facts. Students wrap the string from the problem on the left to the answer on the right, 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. This set contains 10 self-correcting boards and covers all the facts for subtraction. Learning Wrap-Ups Basic Math, Subtraction, Grades 2 to 6: Sold as a set of 10 Allows students to expand their knowledge of math and subtraction Features the answer on the back of each key Wrap string from the problem on the left to the answer on the right Designed for grades 1-3