Here are five sets of four numbers through millions for students to order from least to greatest or greatest to least. The school supply graphics used are great for Back-to-School activities-or for any time of the year. This activity makes a fun center. Sometimes I hang these around the room using clothespins and hangers, sometimes I use magnets and white boards-or cheap cookie trays, sometimes they are just set out as a center. I hope you find these useful and that your students enjoy this activity!