← 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 946 · 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. 1.112² =
  2. 2.334² =
  3. 3.176² =
  4. 4.756² =
  5. 5.573² =
  6. 6.920² =
  7. 7.498² =
  8. 8.988² =
  9. 9.384² =
  10. 10.592² =
  11. 11.365² =
  12. 12.8353² =
  13. 13.234² =
  14. 14.7004² =
  15. 15.5728² =
  16. 16.1423² =
  17. 17.8935² =
  18. 18.464² =
  19. 19.3518² =
  20. 20.326² =
  21. 21.655² =
  22. 22.210² =
  23. 23.1664² =
  24. 24.8348² =
  25. 25.501² =
  26. 26.954² =
  27. 27.174² =
  28. 28.614² =
  29. 29.437² =
  30. 30.584² =
  31. 31.750² =
  32. 32.1014² =
  33. 33.139² =
  34. 34.964² =
  35. 35.178² =
  36. 36.964² =
  37. 37.2431² =
  38. 38.152² =
  39. 39.556² =
  40. 40.869² =

Answer key

  1. 12544
  2. 111556
  3. 30976
  4. 571536
  5. 328329
  6. 846400
  7. 248004
  8. 976144
  9. 147456
  10. 350464
  11. 133225
  12. 69772609
  13. 54756
  14. 49056016
  15. 32809984
  16. 2024929
  17. 79834225
  18. 215296
  19. 12376324
  20. 106276
  21. 429025
  22. 44100
  23. 2768896
  24. 69689104
  25. 251001
  26. 910116
  27. 30276
  28. 376996
  29. 190969
  30. 341056
  31. 562500
  32. 1028196
  33. 19321
  34. 929296
  35. 31684
  36. 929296
  37. 5909761
  38. 23104
  39. 309136
  40. 755161

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