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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 482 · 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. 1.613² =
  2. 2.553² =
  3. 3.1072² =
  4. 4.2351² =
  5. 5.219² =
  6. 6.589² =
  7. 7.129² =
  8. 8.8449² =
  9. 9.467² =
  10. 10.522² =
  11. 11.1208² =
  12. 12.2060² =
  13. 13.897² =
  14. 14.336² =
  15. 15.710² =
  16. 16.1939² =
  17. 17.9201² =
  18. 18.866² =
  19. 19.437² =
  20. 20.302² =
  21. 21.518² =
  22. 22.445² =
  23. 23.2160² =
  24. 24.988² =
  25. 25.678² =
  26. 26.164² =
  27. 27.751² =
  28. 28.437² =
  29. 29.5093² =
  30. 30.8440² =
  31. 31.689² =
  32. 32.311² =
  33. 33.392² =
  34. 34.884² =
  35. 35.631² =
  36. 36.852² =
  37. 37.8360² =
  38. 38.289² =
  39. 39.8194² =
  40. 40.2104² =

Answer key

  1. 375769
  2. 305809
  3. 1149184
  4. 5527201
  5. 47961
  6. 346921
  7. 16641
  8. 71385601
  9. 218089
  10. 272484
  11. 1459264
  12. 4243600
  13. 804609
  14. 112896
  15. 504100
  16. 3759721
  17. 84658401
  18. 749956
  19. 190969
  20. 91204
  21. 268324
  22. 198025
  23. 4665600
  24. 976144
  25. 459684
  26. 26896
  27. 564001
  28. 190969
  29. 25938649
  30. 71233600
  31. 474721
  32. 96721
  33. 153664
  34. 781456
  35. 398161
  36. 725904
  37. 69889600
  38. 83521
  39. 67141636
  40. 4426816

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