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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 371 · 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. 1.187² =
  2. 2.357² =
  3. 3.3853² =
  4. 4.152² =
  5. 5.131² =
  6. 6.540² =
  7. 7.564² =
  8. 8.155² =
  9. 9.9154² =
  10. 10.860² =
  11. 11.355² =
  12. 12.3606² =
  13. 13.156² =
  14. 14.616² =
  15. 15.636² =
  16. 16.4475² =
  17. 17.9682² =
  18. 18.2862² =
  19. 19.730² =
  20. 20.9926² =
  21. 21.9390² =
  22. 22.1164² =
  23. 23.823² =
  24. 24.399² =
  25. 25.359² =
  26. 26.1646² =
  27. 27.7956² =
  28. 28.516² =
  29. 29.933² =
  30. 30.8506² =
  31. 31.7801² =
  32. 32.148² =
  33. 33.461² =
  34. 34.301² =
  35. 35.2060² =
  36. 36.987² =
  37. 37.212² =
  38. 38.4524² =
  39. 39.410² =
  40. 40.749² =

Answer key

  1. 34969
  2. 127449
  3. 14845609
  4. 23104
  5. 17161
  6. 291600
  7. 318096
  8. 24025
  9. 83795716
  10. 739600
  11. 126025
  12. 13003236
  13. 24336
  14. 379456
  15. 404496
  16. 20025625
  17. 93741124
  18. 8191044
  19. 532900
  20. 98525476
  21. 88172100
  22. 1354896
  23. 677329
  24. 159201
  25. 128881
  26. 2709316
  27. 63297936
  28. 266256
  29. 870489
  30. 72352036
  31. 60855601
  32. 21904
  33. 212521
  34. 90601
  35. 4243600
  36. 974169
  37. 44944
  38. 20466576
  39. 168100
  40. 561001

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