Evil Mathematicians: Decimal Points and Commas
A villain uses '.' for decimals in the US and UK and does precisely the opposite in Europe.
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Free for classrooms, worksheets, slides and other non-commercial use under CC BY-NC 4.0, with credit to Ben Orlin.
Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2017-02-01-history-s-most-evil-mathematicians--evil-mathematicians-decimal-points-and-commas/ (CC BY-NC 4.0)Transcript
"In the US and UK, I'll use . as a decimal point and , to break up large numbers…" "…and in Europe, I'll do precisely the opposite."