These are designed to be run off front and back. The multiplication problem will be on the front and the answer will be on the back.
In my class, I ran them off front to back on different colored paper.
On Yellow paper, I ran off the easy facts: 0, 1, 2, 5, 9, 10, & 11. The other facts we run off on different colors. I cut them, laminated them, and put them on binder rings. Once my students have mastered a set, they get to sign the multiplication master door and trade in for a new set.
These can also be printed and cut to use as flash cards.