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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 475 · 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. 1.856² =
  2. 2.6441² =
  3. 3.605² =
  4. 4.380² =
  5. 5.384² =
  6. 6.584² =
  7. 7.7639² =
  8. 8.601² =
  9. 9.558² =
  10. 10.269² =
  11. 11.426² =
  12. 12.143² =
  13. 13.291² =
  14. 14.6214² =
  15. 15.384² =
  16. 16.237² =
  17. 17.1060² =
  18. 18.3085² =
  19. 19.962² =
  20. 20.2083² =
  21. 21.803² =
  22. 22.429² =
  23. 23.355² =
  24. 24.5348² =
  25. 25.9829² =
  26. 26.364² =
  27. 27.310² =
  28. 28.613² =
  29. 29.776² =
  30. 30.6781² =
  31. 31.849² =
  32. 32.7155² =
  33. 33.575² =
  34. 34.7182² =
  35. 35.295² =
  36. 36.936² =
  37. 37.257² =
  38. 38.948² =
  39. 39.2983² =
  40. 40.310² =

Answer key

  1. 732736
  2. 41486481
  3. 366025
  4. 144400
  5. 147456
  6. 341056
  7. 58354321
  8. 361201
  9. 311364
  10. 72361
  11. 181476
  12. 20449
  13. 84681
  14. 38613796
  15. 147456
  16. 56169
  17. 1123600
  18. 9517225
  19. 925444
  20. 4338889
  21. 644809
  22. 184041
  23. 126025
  24. 28601104
  25. 96609241
  26. 132496
  27. 96100
  28. 375769
  29. 602176
  30. 45981961
  31. 720801
  32. 51194025
  33. 330625
  34. 51581124
  35. 87025
  36. 876096
  37. 66049
  38. 898704
  39. 8898289
  40. 96100

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