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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 974 · 40 sums
TalentJR

The trick (Dwandwa Yoga): For abc: columns D(a) | D(ab) | D(abc) | D(bc) | D(c). D(a) = a², D(ab) = 2ab, D(abc) = 2ac + b², D(abcd) = 2ad + 2bc. Combine from the right with carries.

NameDateTime takenScore ___ / 40
  1. 1.8258² =
  2. 2.2382² =
  3. 3.425² =
  4. 4.7615² =
  5. 5.882² =
  6. 6.9794² =
  7. 7.9057² =
  8. 8.553² =
  9. 9.577² =
  10. 10.245² =
  11. 11.715² =
  12. 12.9119² =
  13. 13.2433² =
  14. 14.5170² =
  15. 15.427² =
  16. 16.7440² =
  17. 17.966² =
  18. 18.4808² =
  19. 19.758² =
  20. 20.395² =
  21. 21.1500² =
  22. 22.372² =
  23. 23.5512² =
  24. 24.790² =
  25. 25.198² =
  26. 26.377² =
  27. 27.2077² =
  28. 28.5599² =
  29. 29.781² =
  30. 30.898² =
  31. 31.725² =
  32. 32.524² =
  33. 33.8295² =
  34. 34.280² =
  35. 35.610² =
  36. 36.791² =
  37. 37.9845² =
  38. 38.1907² =
  39. 39.136² =
  40. 40.926² =

Answer key

  1. 68194564
  2. 5673924
  3. 180625
  4. 57988225
  5. 777924
  6. 95922436
  7. 82029249
  8. 305809
  9. 332929
  10. 60025
  11. 511225
  12. 83156161
  13. 5919489
  14. 26728900
  15. 182329
  16. 55353600
  17. 933156
  18. 23116864
  19. 574564
  20. 156025
  21. 2250000
  22. 138384
  23. 30382144
  24. 624100
  25. 39204
  26. 142129
  27. 4313929
  28. 31348801
  29. 609961
  30. 806404
  31. 525625
  32. 274576
  33. 68807025
  34. 78400
  35. 372100
  36. 625681
  37. 96924025
  38. 3636649
  39. 18496
  40. 857476

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