What is wrong with computing it just as 7\*23 + 40\*23 ? | Hacker News

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		amelius on Sept 10, 2024 \| parent \| context \| favorite \| on: Memorizing the first 100 perfect squares (2022) What is wrong with computing it just as 723 + 4023 ?

bibanez on Sept 10, 2024 [–]

Nothing, but if you know perfect squares you will do 3 additions/subtractions instead of 2 products and 1 addition

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