1 to 100

A few weeks ago, I was surprised that Griffin was able to count to 100. Sometimes, when he's so hyper, willie asks him to count and rest for a while. There are times when he is asked to count to 10 or 20 or 100. When told to count to 100, he used to just count to 20 then say 100. But this time, when told to count to 100, he really counted from 1 to 100 with very little help.