Birdwatch Note Rating
2023-08-29 16:10:58 UTC - SOMEWHAT_HELPFUL
Rated by Participant: CEDF14DB83FE181E9604AC80B709827E0C5D80F4D48909B3EE0B4822E9F65663
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Original Note:
This technique does not work for all square-roots or other root functions. The examples here are hand-picked to work. For example: SQRT(169) = 13 SQRT(196) =14. 1+6+9=16 for both, which fails the method presented. This link contains some tricks for larger square roots. https://www.cuemath.com/algebra/square-root-tricks/
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