Multiplying in Other Bases
A student claims 7×8 = 54 'in another base'; the questioner works out that no such base exists while the student flees.
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Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2017-10-16-multiplying-in-other-bases/ (CC BY-NC 4.0)Transcript
A: "What's 7×8?" B: "It's 54." A: "Wrong. 56." B: "Oh... you meant in base ten."
A: "Well, yes, I... hmm... but if... wait..."
A: "There's no base where that's tr— hey! Get back here!"
B: "RUN AWAY"