I have a couple of great, free and not so free, hundreds chart resources that are PERFECT for a hundreds chart center!
These hundreds charts have numbers missing. You can ask students to fill them out column by column to help build their place value understanding. You can also ask students to count as they complete it to help build their understanding of each number.
Click on any of the pictures to come download your freebies and check out a little more about the complete Rockin unit.