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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 966 · 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. 1.3191² =
  2. 2.242² =
  3. 3.308² =
  4. 4.591² =
  5. 5.3288² =
  6. 6.7925² =
  7. 7.821² =
  8. 8.505² =
  9. 9.159² =
  10. 10.461² =
  11. 11.4880² =
  12. 12.9815² =
  13. 13.238² =
  14. 14.214² =
  15. 15.524² =
  16. 16.262² =
  17. 17.3269² =
  18. 18.928² =
  19. 19.9949² =
  20. 20.340² =
  21. 21.7292² =
  22. 22.2195² =
  23. 23.9732² =
  24. 24.5491² =
  25. 25.190² =
  26. 26.5036² =
  27. 27.774² =
  28. 28.5852² =
  29. 29.365² =
  30. 30.159² =
  31. 31.136² =
  32. 32.975² =
  33. 33.133² =
  34. 34.601² =
  35. 35.950² =
  36. 36.524² =
  37. 37.5966² =
  38. 38.784² =
  39. 39.715² =
  40. 40.694² =

Answer key

  1. 10182481
  2. 58564
  3. 94864
  4. 349281
  5. 10810944
  6. 62805625
  7. 674041
  8. 255025
  9. 25281
  10. 212521
  11. 23814400
  12. 96334225
  13. 56644
  14. 45796
  15. 274576
  16. 68644
  17. 10686361
  18. 861184
  19. 98982601
  20. 115600
  21. 53173264
  22. 4818025
  23. 94711824
  24. 30151081
  25. 36100
  26. 25361296
  27. 599076
  28. 34245904
  29. 133225
  30. 25281
  31. 18496
  32. 950625
  33. 17689
  34. 361201
  35. 902500
  36. 274576
  37. 35593156
  38. 614656
  39. 511225
  40. 481636

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