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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 461 · 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. 1.571² =
  2. 2.633² =
  3. 3.2078² =
  4. 4.323² =
  5. 5.533² =
  6. 6.651² =
  7. 7.222² =
  8. 8.9000² =
  9. 9.583² =
  10. 10.1048² =
  11. 11.4709² =
  12. 12.6621² =
  13. 13.886² =
  14. 14.398² =
  15. 15.2649² =
  16. 16.870² =
  17. 17.464² =
  18. 18.6480² =
  19. 19.912² =
  20. 20.219² =
  21. 21.6110² =
  22. 22.997² =
  23. 23.830² =
  24. 24.4993² =
  25. 25.276² =
  26. 26.890² =
  27. 27.622² =
  28. 28.2628² =
  29. 29.1074² =
  30. 30.1274² =
  31. 31.355² =
  32. 32.605² =
  33. 33.3564² =
  34. 34.6159² =
  35. 35.730² =
  36. 36.7739² =
  37. 37.2423² =
  38. 38.220² =
  39. 39.169² =
  40. 40.199² =

Answer key

  1. 326041
  2. 400689
  3. 4318084
  4. 104329
  5. 284089
  6. 423801
  7. 49284
  8. 81000000
  9. 339889
  10. 1098304
  11. 22174681
  12. 43837641
  13. 784996
  14. 158404
  15. 7017201
  16. 756900
  17. 215296
  18. 41990400
  19. 831744
  20. 47961
  21. 37332100
  22. 994009
  23. 688900
  24. 24930049
  25. 76176
  26. 792100
  27. 386884
  28. 6906384
  29. 1153476
  30. 1623076
  31. 126025
  32. 366025
  33. 12702096
  34. 37933281
  35. 532900
  36. 59892121
  37. 5870929
  38. 48400
  39. 28561
  40. 39601

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