Unlike other audios the ""Wrap-up Rap"" uses a random order to practice the facts, They also go through each set of problems three times; once with the answers given one without and if a student can keep up with the faster pace of the third time they have probably learned their facts, Use independently or with Learning Wrap-pups, Choose from Addition Subtraction Multiplication and Division, Use them once and you ll understand why teachers consider these to be the best audio CDs for teaching math on the market, SKU: EDRE5018