Math Abbott-and-Costello-style

Supriya has been asking me to get Abbott and Costello movies again from Netflix. She and Aseem really enjoy their slapstick stuff. So I decided to look up Abbott and Costello on Youtube.com and of course it's a treasure-trove of all their routines - including a variety of their awesome "Who's on first?" skit. I thought this math routine is particularly appropriate on this blog (which includes the famous lines: "Did you ever go to school stupid?" "Yeah, and I came out the same way!")