Re: [math-fun] |A|+|B|=|C|

Is there a mathematical grift along the lines of the missing dollar riddle?: https://en.wikipedia.org/wiki/Missing_dollar_riddle I get the feeling I’ve seen such a thing in a movie, or maybe an Abbot and Costello routine. I thought I might find what I’m looking for in “Paper Moon”, but I could only find a clip showing a two-person con involving a marked $20 bill. Jim Propp