Counting to 100 by ones is probably the standard that makes me the MOST crazy!! Listening to children count to 100 is worse than watching paint dry, or having bamboo shoots shoved under your finger nails. Ok maybe not that bad but close, ok? So I've been trying to come up with ways to practice without having to count count.
This is one of the actives we do. I hand each little 5-6 cards. Then we build a numbers chart. I could really tell the children who understand numbers and the patterns that numbers make compared to those who can just rote count and hold no understanding.
Hope this gets you excited and you can use these two ideas in your classroom!