I copied several 100 charts onto different colors of cardstock and laminated them. Then I cut a couple of them up into puzzle pieces and had the kids put the puzzles back together on top of an uncut 100 chart. As the kids got better at it they had to put them together without using the uncut 100 chart as a guide.
We started off just cutting them into straight strips by the tens families so the kids would notice the patterns.
These games are so easy to store... I just put them into a clear sheet protector so the pieces stay together and they fit perfectly in a file cabinet.