← 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 512 · 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. 1.8382² =
  2. 2.5006² =
  3. 3.1427² =
  4. 4.618² =
  5. 5.1362² =
  6. 6.411² =
  7. 7.140² =
  8. 8.641² =
  9. 9.5461² =
  10. 10.437² =
  11. 11.689² =
  12. 12.8592² =
  13. 13.859² =
  14. 14.644² =
  15. 15.553² =
  16. 16.767² =
  17. 17.4500² =
  18. 18.9838² =
  19. 19.235² =
  20. 20.153² =
  21. 21.607² =
  22. 22.959² =
  23. 23.1589² =
  24. 24.488² =
  25. 25.230² =
  26. 26.4917² =
  27. 27.9269² =
  28. 28.930² =
  29. 29.762² =
  30. 30.981² =
  31. 31.467² =
  32. 32.453² =
  33. 33.341² =
  34. 34.714² =
  35. 35.301² =
  36. 36.522² =
  37. 37.176² =
  38. 38.478² =
  39. 39.242² =
  40. 40.397² =

Answer key

  1. 70257924
  2. 25060036
  3. 2036329
  4. 381924
  5. 1855044
  6. 168921
  7. 19600
  8. 410881
  9. 29822521
  10. 190969
  11. 474721
  12. 73822464
  13. 737881
  14. 414736
  15. 305809
  16. 588289
  17. 20250000
  18. 96786244
  19. 55225
  20. 23409
  21. 368449
  22. 919681
  23. 2524921
  24. 238144
  25. 52900
  26. 24176889
  27. 85914361
  28. 864900
  29. 580644
  30. 962361
  31. 218089
  32. 205209
  33. 116281
  34. 509796
  35. 90601
  36. 272484
  37. 30976
  38. 228484
  39. 58564
  40. 157609

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