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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 870 · 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. 1.428² =
  2. 2.491² =
  3. 3.233² =
  4. 4.4366² =
  5. 5.7631² =
  6. 6.9699² =
  7. 7.831² =
  8. 8.6507² =
  9. 9.1701² =
  10. 10.734² =
  11. 11.210² =
  12. 12.753² =
  13. 13.407² =
  14. 14.1498² =
  15. 15.936² =
  16. 16.281² =
  17. 17.243² =
  18. 18.5558² =
  19. 19.499² =
  20. 20.912² =
  21. 21.9563² =
  22. 22.851² =
  23. 23.911² =
  24. 24.325² =
  25. 25.8624² =
  26. 26.243² =
  27. 27.3588² =
  28. 28.265² =
  29. 29.367² =
  30. 30.7590² =
  31. 31.130² =
  32. 32.152² =
  33. 33.463² =
  34. 34.187² =
  35. 35.1984² =
  36. 36.206² =
  37. 37.171² =
  38. 38.201² =
  39. 39.818² =
  40. 40.281² =

Answer key

  1. 183184
  2. 241081
  3. 54289
  4. 19061956
  5. 58232161
  6. 94070601
  7. 690561
  8. 42341049
  9. 2893401
  10. 538756
  11. 44100
  12. 567009
  13. 165649
  14. 2244004
  15. 876096
  16. 78961
  17. 59049
  18. 30891364
  19. 249001
  20. 831744
  21. 91450969
  22. 724201
  23. 829921
  24. 105625
  25. 74373376
  26. 59049
  27. 12873744
  28. 70225
  29. 134689
  30. 57608100
  31. 16900
  32. 23104
  33. 214369
  34. 34969
  35. 3936256
  36. 42436
  37. 29241
  38. 40401
  39. 669124
  40. 78961

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