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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 945 · 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. 1.964² =
  2. 2.559² =
  3. 3.3995² =
  4. 4.581² =
  5. 5.483² =
  6. 6.225² =
  7. 7.9752² =
  8. 8.285² =
  9. 9.230² =
  10. 10.517² =
  11. 11.4418² =
  12. 12.892² =
  13. 13.5943² =
  14. 14.488² =
  15. 15.791² =
  16. 16.790² =
  17. 17.8090² =
  18. 18.748² =
  19. 19.531² =
  20. 20.8321² =
  21. 21.633² =
  22. 22.290² =
  23. 23.678² =
  24. 24.6676² =
  25. 25.956² =
  26. 26.174² =
  27. 27.565² =
  28. 28.757² =
  29. 29.292² =
  30. 30.133² =
  31. 31.936² =
  32. 32.4984² =
  33. 33.5795² =
  34. 34.6041² =
  35. 35.4225² =
  36. 36.210² =
  37. 37.4253² =
  38. 38.471² =
  39. 39.9902² =
  40. 40.7381² =

Answer key

  1. 929296
  2. 312481
  3. 15960025
  4. 337561
  5. 233289
  6. 50625
  7. 95101504
  8. 81225
  9. 52900
  10. 267289
  11. 19518724
  12. 795664
  13. 35319249
  14. 238144
  15. 625681
  16. 624100
  17. 65448100
  18. 559504
  19. 281961
  20. 69239041
  21. 400689
  22. 84100
  23. 459684
  24. 44568976
  25. 913936
  26. 30276
  27. 319225
  28. 573049
  29. 85264
  30. 17689
  31. 876096
  32. 24840256
  33. 33582025
  34. 36493681
  35. 17850625
  36. 44100
  37. 18088009
  38. 221841
  39. 98049604
  40. 54479161

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