← 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 651 · 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. 1.3737² =
  2. 2.9701² =
  3. 3.475² =
  4. 4.427² =
  5. 5.730² =
  6. 6.917² =
  7. 7.802² =
  8. 8.842² =
  9. 9.5004² =
  10. 10.446² =
  11. 11.502² =
  12. 12.3484² =
  13. 13.9795² =
  14. 14.739² =
  15. 15.987² =
  16. 16.7058² =
  17. 17.695² =
  18. 18.190² =
  19. 19.971² =
  20. 20.173² =
  21. 21.1016² =
  22. 22.7584² =
  23. 23.488² =
  24. 24.628² =
  25. 25.361² =
  26. 26.6159² =
  27. 27.820² =
  28. 28.526² =
  29. 29.3976² =
  30. 30.984² =
  31. 31.954² =
  32. 32.2780² =
  33. 33.8308² =
  34. 34.124² =
  35. 35.546² =
  36. 36.1176² =
  37. 37.443² =
  38. 38.683² =
  39. 39.218² =
  40. 40.630² =

Answer key

  1. 13965169
  2. 94109401
  3. 225625
  4. 182329
  5. 532900
  6. 840889
  7. 643204
  8. 708964
  9. 25040016
  10. 198916
  11. 252004
  12. 12138256
  13. 95942025
  14. 546121
  15. 974169
  16. 49815364
  17. 483025
  18. 36100
  19. 942841
  20. 29929
  21. 1032256
  22. 57517056
  23. 238144
  24. 394384
  25. 130321
  26. 37933281
  27. 672400
  28. 276676
  29. 15808576
  30. 968256
  31. 910116
  32. 7728400
  33. 69022864
  34. 15376
  35. 298116
  36. 1382976
  37. 196249
  38. 466489
  39. 47524
  40. 396900

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