I told that story to my friend's daughter a couple of years ago. Next time I visited she was excited to tell me how she used it to win a sheet of stickers by be

I told that story to my friend's daughter a couple of years ago. Next time I visited she was excited to tell me how she used it to win a sheet of stickers by betting one of her classmates she could add up the numbers faster than they could with a calculator. It was clever of her to add the calculator handicap into the mix. Makes me wonder if there are math hustlers outside of casinos.