Counting to 100 by Lil Man

I'll try to keep this short.  The other day I was driving and Lil Man was in the back seat.  He felt that the car ride was taking too long so he decided to count to 100.  As I am listening to him I hear "twosie-one, twosie-two . . ." and then "threesie-one, threesie-two . . ."  Then he says, "That's not right, Goppie, count with me."  So we counted together from one to one hundred.  After that he got it all right [well, maybe I helped once or twice].  But I thought that was pretty cute.  He had the right idea, but he just couldn't remember how to say it!  Yes, I know.  He is brilliant!