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221 sats \ 1 reply \ @Scroogey 12 Oct \ on: [Daily puzzle] No calculator math science
(1000-1)^2 - (1000-2)^2 = 1000^2 - 2000 + 1 - 1000^2 + 4000 - 4 = 2000 - 3 = 1997
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1 sat \ 0 replies \ @south_korea_ln OP 12 Oct
That's also one of the ways.
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