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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 495 · 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. 1.753² =
  2. 2.706² =
  3. 3.4270² =
  4. 4.441² =
  5. 5.5240² =
  6. 6.5312² =
  7. 7.914² =
  8. 8.6317² =
  9. 9.4079² =
  10. 10.9945² =
  11. 11.836² =
  12. 12.9394² =
  13. 13.628² =
  14. 14.3786² =
  15. 15.6208² =
  16. 16.2458² =
  17. 17.491² =
  18. 18.5593² =
  19. 19.954² =
  20. 20.581² =
  21. 21.568² =
  22. 22.423² =
  23. 23.8485² =
  24. 24.778² =
  25. 25.5369² =
  26. 26.221² =
  27. 27.416² =
  28. 28.319² =
  29. 29.962² =
  30. 30.377² =
  31. 31.358² =
  32. 32.268² =
  33. 33.2504² =
  34. 34.579² =
  35. 35.8277² =
  36. 36.548² =
  37. 37.692² =
  38. 38.529² =
  39. 39.264² =
  40. 40.301² =

Answer key

  1. 567009
  2. 498436
  3. 18232900
  4. 194481
  5. 27457600
  6. 28217344
  7. 835396
  8. 39904489
  9. 16638241
  10. 98903025
  11. 698896
  12. 88247236
  13. 394384
  14. 14333796
  15. 38539264
  16. 6041764
  17. 241081
  18. 31281649
  19. 910116
  20. 337561
  21. 322624
  22. 178929
  23. 71995225
  24. 605284
  25. 28826161
  26. 48841
  27. 173056
  28. 101761
  29. 925444
  30. 142129
  31. 128164
  32. 71824
  33. 6270016
  34. 335241
  35. 68508729
  36. 300304
  37. 478864
  38. 279841
  39. 69696
  40. 90601

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