I was at a Math CCSS workshop and hear over and over again to use hundred charts so students can learn the patterns and get a better understanding of place value, adding and subtracting tens, skip counting, etc.
I like projecting these and doing them together, as a math station where students share the pen, and I project them during in-door recesses. These are also great laminated to use in centers or for homework. The most important part of these activities is to discuss the patterns they see.
This packet includes:
Hundred charts to help learn skip counting by 2, 3, 4, 5 and 10.
Hundred charts with missing numbers.
Parts of hundred charts (hard but fun!).
Writing (if you want to put it on the back).