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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 41 · 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. 1.157² =
  2. 2.1573² =
  3. 3.852² =
  4. 4.162² =
  5. 5.690² =
  6. 6.406² =
  7. 7.266² =
  8. 8.596² =
  9. 9.555² =
  10. 10.1412² =
  11. 11.305² =
  12. 12.4951² =
  13. 13.502² =
  14. 14.634² =
  15. 15.5368² =
  16. 16.380² =
  17. 17.3869² =
  18. 18.8698² =
  19. 19.2927² =
  20. 20.802² =
  21. 21.687² =
  22. 22.798² =
  23. 23.453² =
  24. 24.581² =
  25. 25.693² =
  26. 26.816² =
  27. 27.2147² =
  28. 28.4452² =
  29. 29.2967² =
  30. 30.608² =
  31. 31.119² =
  32. 32.8229² =
  33. 33.303² =
  34. 34.160² =
  35. 35.490² =
  36. 36.8734² =
  37. 37.662² =
  38. 38.8348² =
  39. 39.160² =
  40. 40.682² =

Answer key

  1. 24649
  2. 2474329
  3. 725904
  4. 26244
  5. 476100
  6. 164836
  7. 70756
  8. 355216
  9. 308025
  10. 1993744
  11. 93025
  12. 24512401
  13. 252004
  14. 401956
  15. 28815424
  16. 144400
  17. 14969161
  18. 75655204
  19. 8567329
  20. 643204
  21. 471969
  22. 636804
  23. 205209
  24. 337561
  25. 480249
  26. 665856
  27. 4609609
  28. 19820304
  29. 8803089
  30. 369664
  31. 14161
  32. 67716441
  33. 91809
  34. 25600
  35. 240100
  36. 76282756
  37. 438244
  38. 69689104
  39. 25600
  40. 465124

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