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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 326 · 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. 1.965² =
  2. 2.727² =
  3. 3.841² =
  4. 4.9814² =
  5. 5.6088² =
  6. 6.688² =
  7. 7.897² =
  8. 8.4200² =
  9. 9.8540² =
  10. 10.513² =
  11. 11.3462² =
  12. 12.5759² =
  13. 13.946² =
  14. 14.177² =
  15. 15.713² =
  16. 16.1642² =
  17. 17.145² =
  18. 18.7100² =
  19. 19.173² =
  20. 20.918² =
  21. 21.871² =
  22. 22.427² =
  23. 23.206² =
  24. 24.9518² =
  25. 25.303² =
  26. 26.225² =
  27. 27.2889² =
  28. 28.3565² =
  29. 29.583² =
  30. 30.312² =
  31. 31.643² =
  32. 32.643² =
  33. 33.451² =
  34. 34.568² =
  35. 35.3678² =
  36. 36.3504² =
  37. 37.538² =
  38. 38.736² =
  39. 39.240² =
  40. 40.381² =

Answer key

  1. 931225
  2. 528529
  3. 707281
  4. 96314596
  5. 37063744
  6. 473344
  7. 804609
  8. 17640000
  9. 72931600
  10. 263169
  11. 11985444
  12. 33166081
  13. 894916
  14. 31329
  15. 508369
  16. 2696164
  17. 21025
  18. 50410000
  19. 29929
  20. 842724
  21. 758641
  22. 182329
  23. 42436
  24. 90592324
  25. 91809
  26. 50625
  27. 8346321
  28. 12709225
  29. 339889
  30. 97344
  31. 413449
  32. 413449
  33. 203401
  34. 322624
  35. 13527684
  36. 12278016
  37. 289444
  38. 541696
  39. 57600
  40. 145161

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