a person who takes part in a mathematics competition, typically one organized for schoolchildren
as with other mathletes, he spends up to four hours a day on his hobby—or what he simply calls his ‘calculations’

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Connections NYT: Hints For Today's Puzzle, Tue, Jan 13

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Today’s Wordle Answer Jan 13 #1669- NYT Wordle Hints & Updates

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NYT Mini Crossword Answers Today - The Mini for Jan 13 Solved