This is a set of 12 puzzles. Each puzzle uses addition or subtraction to solve the inequality. The inequalities are matched with the solution set in set-builder notation and the corresponding number line.
When you print with the short side being the flipping side, the answer key will print on the back.
I printed these on cardstock and cut them out. I also give them to my students paper clipped into 3 sections by the puzzle piece side.