This is a set of 16 task cards. Students can use them in math centers, as individual work, partner work, group work, etc. I made two sets of these task cards for my fifth graders and passed them out after my lesson on subtracting mixed numbers. I gave the class about three minutes to solve the problem in front of them and then said, "SCOOT!" and had them move to the next problem. Of course there are many other ways to use task cards, just throwing my way out there! There is an answer key included. If you have any questions or suggestions please feel free to message me :) Enjoy!