Thanks to Patrick from Germany for suggesting this problem! Students were supposed to solve it in less than 1 minute with no calculator. Special thanks this month to: Nida Davis, Richard Ohnemus, Shrihari Puranik, Kyle, Michael Anvari . Thanks to all supporters on Patreon! References
2018 Raytheon MATHCOUNTS National Competition (link includes timestamp around 35:34)
Math StackExchange
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2017 Shorty Awards Nominee. Mind Your Decisions was nominated in the STEM category (Science, Technology, Engineering, and Math) along with eventual winner Bill Nye; finalists Adam Savage, Dr. Sandra Lee, Simone Giertz, Tim Peake, Unbox Therapy; and other nominees Elon Musk, Gizmoslip, Hope Jahren, Life Noggin, and Nerdwriter.
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