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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 875 · 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. 1.495² =
  2. 2.452² =
  3. 3.720² =
  4. 4.5905² =
  5. 5.7964² =
  6. 6.341² =
  7. 7.876² =
  8. 8.753² =
  9. 9.4773² =
  10. 10.9723² =
  11. 11.453² =
  12. 12.5384² =
  13. 13.638² =
  14. 14.2798² =
  15. 15.8168² =
  16. 16.8190² =
  17. 17.679² =
  18. 18.285² =
  19. 19.416² =
  20. 20.106² =
  21. 21.5602² =
  22. 22.7411² =
  23. 23.562² =
  24. 24.4486² =
  25. 25.691² =
  26. 26.260² =
  27. 27.156² =
  28. 28.2926² =
  29. 29.516² =
  30. 30.203² =
  31. 31.8293² =
  32. 32.590² =
  33. 33.409² =
  34. 34.655² =
  35. 35.265² =
  36. 36.443² =
  37. 37.775² =
  38. 38.993² =
  39. 39.722² =
  40. 40.4016² =

Answer key

  1. 245025
  2. 204304
  3. 518400
  4. 34869025
  5. 63425296
  6. 116281
  7. 767376
  8. 567009
  9. 22781529
  10. 94536729
  11. 205209
  12. 28987456
  13. 407044
  14. 7828804
  15. 66716224
  16. 67076100
  17. 461041
  18. 81225
  19. 173056
  20. 11236
  21. 31382404
  22. 54922921
  23. 315844
  24. 20124196
  25. 477481
  26. 67600
  27. 24336
  28. 8561476
  29. 266256
  30. 41209
  31. 68773849
  32. 348100
  33. 167281
  34. 429025
  35. 70225
  36. 196249
  37. 600625
  38. 986049
  39. 521284
  40. 16128256

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