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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 225 · 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. 1.273² =
  2. 2.2863² =
  3. 3.371² =
  4. 4.963² =
  5. 5.935² =
  6. 6.821² =
  7. 7.885² =
  8. 8.262² =
  9. 9.217² =
  10. 10.808² =
  11. 11.698² =
  12. 12.4604² =
  13. 13.4808² =
  14. 14.827² =
  15. 15.632² =
  16. 16.4775² =
  17. 17.6063² =
  18. 18.1881² =
  19. 19.5170² =
  20. 20.373² =
  21. 21.876² =
  22. 22.163² =
  23. 23.9734² =
  24. 24.960² =
  25. 25.168² =
  26. 26.5539² =
  27. 27.7831² =
  28. 28.282² =
  29. 29.2039² =
  30. 30.8761² =
  31. 31.844² =
  32. 32.4337² =
  33. 33.930² =
  34. 34.155² =
  35. 35.6668² =
  36. 36.533² =
  37. 37.851² =
  38. 38.354² =
  39. 39.734² =
  40. 40.193² =

Answer key

  1. 74529
  2. 8196769
  3. 137641
  4. 927369
  5. 874225
  6. 674041
  7. 783225
  8. 68644
  9. 47089
  10. 652864
  11. 487204
  12. 21196816
  13. 23116864
  14. 683929
  15. 399424
  16. 22800625
  17. 36759969
  18. 3538161
  19. 26728900
  20. 139129
  21. 767376
  22. 26569
  23. 94750756
  24. 921600
  25. 28224
  26. 30680521
  27. 61324561
  28. 79524
  29. 4157521
  30. 76755121
  31. 712336
  32. 18809569
  33. 864900
  34. 24025
  35. 44462224
  36. 284089
  37. 724201
  38. 125316
  39. 538756
  40. 37249

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