These are just simple flash cards that include a really fun classroom competition that our fifth grade has every two weeks. It also includes a printable poster for the "fluency king or queen" and blank cards for adding additional skills to the competitions such as division, GCM, LCM, or whatever you want! The product includes detailed instructions on how to use the cards and how to run the competition. Our kids LOVE it. This is a great motivator. Enjoy!