I use these are part of my homeschooling curriculum as a way to practice the basics. We usually complete a point of learning, like fact families or the like, spend a few minutes with a couple of examples problems from that activity, then end with one side of a Channie’s page. I can see these as useful for students who need extra practice, too, as one page seems to be just enough work and doesn’t take too much time. These would also make excellent summer refreshers for kids to keep them thinking over the long break. I am very happy with this product, and will be “graduating” my lessons to include the double-digit version of these very soon! Only one complaint, but it’s barely a complaint. Occasionally, there will be a repeat problem on a page; however, having your child notice these is kind of another type of learning opportunity in that the child can show memorization (if there is any yet), recognition similarity (as opposed to plugging along and not noticing “hey, I’ve just done this one!”).