← Squares of 3- and 4-digit numbers lesson New set →

Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 723 · 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. 1.1990² =
  2. 2.3677² =
  3. 3.478² =
  4. 4.9000² =
  5. 5.1033² =
  6. 6.345² =
  7. 7.240² =
  8. 8.226² =
  9. 9.130² =
  10. 10.515² =
  11. 11.6835² =
  12. 12.6478² =
  13. 13.6160² =
  14. 14.101² =
  15. 15.834² =
  16. 16.473² =
  17. 17.5068² =
  18. 18.131² =
  19. 19.3990² =
  20. 20.8745² =
  21. 21.894² =
  22. 22.163² =
  23. 23.204² =
  24. 24.436² =
  25. 25.696² =
  26. 26.201² =
  27. 27.799² =
  28. 28.5078² =
  29. 29.691² =
  30. 30.344² =
  31. 31.411² =
  32. 32.5081² =
  33. 33.4651² =
  34. 34.937² =
  35. 35.562² =
  36. 36.390² =
  37. 37.4770² =
  38. 38.202² =
  39. 39.5675² =
  40. 40.366² =

Answer key

  1. 3960100
  2. 13520329
  3. 228484
  4. 81000000
  5. 1067089
  6. 119025
  7. 57600
  8. 51076
  9. 16900
  10. 265225
  11. 46717225
  12. 41964484
  13. 37945600
  14. 10201
  15. 695556
  16. 223729
  17. 25684624
  18. 17161
  19. 15920100
  20. 76475025
  21. 799236
  22. 26569
  23. 41616
  24. 190096
  25. 484416
  26. 40401
  27. 638401
  28. 25786084
  29. 477481
  30. 118336
  31. 168921
  32. 25816561
  33. 21631801
  34. 877969
  35. 315844
  36. 152100
  37. 22752900
  38. 40804
  39. 32205625
  40. 133956

Free vedic maths lessons, practice and worksheets at talentjr.in/vedic-maths