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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 58 · 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. 1.692² =
  2. 2.126² =
  3. 3.2778² =
  4. 4.377² =
  5. 5.2350² =
  6. 6.669² =
  7. 7.239² =
  8. 8.971² =
  9. 9.540² =
  10. 10.526² =
  11. 11.655² =
  12. 12.7028² =
  13. 13.748² =
  14. 14.631² =
  15. 15.811² =
  16. 16.289² =
  17. 17.913² =
  18. 18.248² =
  19. 19.7397² =
  20. 20.737² =
  21. 21.805² =
  22. 22.8498² =
  23. 23.966² =
  24. 24.401² =
  25. 25.614² =
  26. 26.438² =
  27. 27.6024² =
  28. 28.1917² =
  29. 29.705² =
  30. 30.5245² =
  31. 31.7740² =
  32. 32.323² =
  33. 33.533² =
  34. 34.235² =
  35. 35.3758² =
  36. 36.4146² =
  37. 37.8693² =
  38. 38.200² =
  39. 39.5107² =
  40. 40.9578² =

Answer key

  1. 478864
  2. 15876
  3. 7717284
  4. 142129
  5. 5522500
  6. 447561
  7. 57121
  8. 942841
  9. 291600
  10. 276676
  11. 429025
  12. 49392784
  13. 559504
  14. 398161
  15. 657721
  16. 83521
  17. 833569
  18. 61504
  19. 54715609
  20. 543169
  21. 648025
  22. 72216004
  23. 933156
  24. 160801
  25. 376996
  26. 191844
  27. 36288576
  28. 3674889
  29. 497025
  30. 27510025
  31. 59907600
  32. 104329
  33. 284089
  34. 55225
  35. 14122564
  36. 17189316
  37. 75568249
  38. 40000
  39. 26081449
  40. 91738084

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