← 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 909 · 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. 1.950² =
  2. 2.7789² =
  3. 3.329² =
  4. 4.850² =
  5. 5.158² =
  6. 6.310² =
  7. 7.413² =
  8. 8.2223² =
  9. 9.612² =
  10. 10.427² =
  11. 11.464² =
  12. 12.775² =
  13. 13.3655² =
  14. 14.5419² =
  15. 15.716² =
  16. 16.119² =
  17. 17.6336² =
  18. 18.271² =
  19. 19.8966² =
  20. 20.492² =
  21. 21.921² =
  22. 22.2591² =
  23. 23.263² =
  24. 24.240² =
  25. 25.308² =
  26. 26.144² =
  27. 27.9490² =
  28. 28.8776² =
  29. 29.1651² =
  30. 30.8616² =
  31. 31.635² =
  32. 32.442² =
  33. 33.375² =
  34. 34.3704² =
  35. 35.886² =
  36. 36.896² =
  37. 37.974² =
  38. 38.510² =
  39. 39.431² =
  40. 40.443² =

Answer key

  1. 902500
  2. 60668521
  3. 108241
  4. 722500
  5. 24964
  6. 96100
  7. 170569
  8. 4941729
  9. 374544
  10. 182329
  11. 215296
  12. 600625
  13. 13359025
  14. 29365561
  15. 512656
  16. 14161
  17. 40144896
  18. 73441
  19. 80389156
  20. 242064
  21. 848241
  22. 6713281
  23. 69169
  24. 57600
  25. 94864
  26. 20736
  27. 90060100
  28. 77018176
  29. 2725801
  30. 74235456
  31. 403225
  32. 195364
  33. 140625
  34. 13719616
  35. 784996
  36. 802816
  37. 948676
  38. 260100
  39. 185761
  40. 196249

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