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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 766 · 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. 1.116² =
  2. 2.221² =
  3. 3.194² =
  4. 4.311² =
  5. 5.1337² =
  6. 6.6025² =
  7. 7.5287² =
  8. 8.656² =
  9. 9.372² =
  10. 10.860² =
  11. 11.129² =
  12. 12.751² =
  13. 13.4943² =
  14. 14.959² =
  15. 15.1240² =
  16. 16.7424² =
  17. 17.978² =
  18. 18.2973² =
  19. 19.687² =
  20. 20.213² =
  21. 21.605² =
  22. 22.5536² =
  23. 23.200² =
  24. 24.115² =
  25. 25.225² =
  26. 26.5646² =
  27. 27.480² =
  28. 28.2288² =
  29. 29.631² =
  30. 30.983² =
  31. 31.9923² =
  32. 32.255² =
  33. 33.7084² =
  34. 34.681² =
  35. 35.687² =
  36. 36.4399² =
  37. 37.267² =
  38. 38.418² =
  39. 39.352² =
  40. 40.4902² =

Answer key

  1. 13456
  2. 48841
  3. 37636
  4. 96721
  5. 1787569
  6. 36300625
  7. 27952369
  8. 430336
  9. 138384
  10. 739600
  11. 16641
  12. 564001
  13. 24433249
  14. 919681
  15. 1537600
  16. 55115776
  17. 956484
  18. 8838729
  19. 471969
  20. 45369
  21. 366025
  22. 30647296
  23. 40000
  24. 13225
  25. 50625
  26. 31877316
  27. 230400
  28. 5234944
  29. 398161
  30. 966289
  31. 98465929
  32. 65025
  33. 50183056
  34. 463761
  35. 471969
  36. 19351201
  37. 71289
  38. 174724
  39. 123904
  40. 24029604

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