Yesterday I asked Jake to do something for me, which really wasn't something he needed to do -- he hadn't made the mess, but I wanted him to help me clean up. When he didn't want to do it, I said "Come on, I'll give you a quarter!" (Something that until now has been quite the motivator for him.)
Well this time he looked me straight in the eye and said "Ten dollars."
AND, Jake is getting SO good at counting money. We were playing candy stand with our leftover Halloween candy (nope, we don't eat it all) and we'll change how much each piece will cost. When each piece cost a quarter I told Jake there were 4 quarters in a dollar. Then I said "How many pieces of candy can I get for 2 dollars?" Bro didn't even miss a beat, he just said "Eight!"
THEN, the other day Jake found 2 quarters and 2 dimes. He brought it to me and I asked him if he remembered what 25 plus 25 is. He immediately said "50" and then I was starting to talk to him about dimes, and he said "I have 70 cents!"
I fully expect him to pass up my math competency in about 2 years. (Won't take much.)