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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 176 · 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. 1.958² =
  2. 2.434² =
  3. 3.189² =
  4. 4.815² =
  5. 5.305² =
  6. 6.1026² =
  7. 7.516² =
  8. 8.132² =
  9. 9.854² =
  10. 10.8928² =
  11. 11.2463² =
  12. 12.954² =
  13. 13.428² =
  14. 14.484² =
  15. 15.3537² =
  16. 16.186² =
  17. 17.1472² =
  18. 18.705² =
  19. 19.562² =
  20. 20.5102² =
  21. 21.2979² =
  22. 22.3845² =
  23. 23.591² =
  24. 24.9032² =
  25. 25.231² =
  26. 26.537² =
  27. 27.512² =
  28. 28.764² =
  29. 29.219² =
  30. 30.5266² =
  31. 31.584² =
  32. 32.399² =
  33. 33.7213² =
  34. 34.724² =
  35. 35.2283² =
  36. 36.447² =
  37. 37.749² =
  38. 38.483² =
  39. 39.686² =
  40. 40.720² =

Answer key

  1. 917764
  2. 188356
  3. 35721
  4. 664225
  5. 93025
  6. 1052676
  7. 266256
  8. 17424
  9. 729316
  10. 79709184
  11. 6066369
  12. 910116
  13. 183184
  14. 234256
  15. 12510369
  16. 34596
  17. 2166784
  18. 497025
  19. 315844
  20. 26030404
  21. 8874441
  22. 14784025
  23. 349281
  24. 81577024
  25. 53361
  26. 288369
  27. 262144
  28. 583696
  29. 47961
  30. 27730756
  31. 341056
  32. 159201
  33. 52027369
  34. 524176
  35. 5212089
  36. 199809
  37. 561001
  38. 233289
  39. 470596
  40. 518400

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