Great for independent math centers or for a small group, cooperative learning activity. Answers are included!
When having the students work in groups of 2-4 to solve, I have more than one set available so that those who finish earlier can have a second set to work on.
Option 1: I laminate them and cut them out myself. I've found that my students like to write on the pieces so when laminated, they can use erasable markers. This option is also best when being used for an independent, centers-style activity because the student doesn't spend time cutting.
Option 2: I copy them onto regular copier paper and have the students cut them. These become "disposable" because my students like to write on the pieces, but I find that letting them have a little social time during the cutting (which takes 5-7 minutes) results in more focused conversations during the actual activity.