A 16 problem circuit training exercise. You start in the first box, find the answer in another box. That new box is numbered two and then find the answer to that box. Continue until the worksheet is complete and you find the answer found in the first box. Self-checking!
This hits sum/difference of cubics early, so I prefer to do it in class when this topic is new rather than just sending it home. You can do a guided or work/report for the first two or three boxes to get them going, and then the students should be off and running.