NPR Sunday Puzzle (Jan 4, 2026): Equation of the Year
NPR Sunday Puzzle (Jan 4, 2026): Equation of the Year Q: This week’s challenge is a numerical one. Take the nine digits — 1, 2, 3, 4, 5, 6, 7, 8, 9. You can group some of them and add arithmetic operations to get 2011 like this: 1 + 23 […]
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