← 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 961 · 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. 1.8402² =
  2. 2.750² =
  3. 3.6579² =
  4. 4.386² =
  5. 5.5168² =
  6. 6.614² =
  7. 7.602² =
  8. 8.814² =
  9. 9.309² =
  10. 10.3535² =
  11. 11.2613² =
  12. 12.8932² =
  13. 13.344² =
  14. 14.9971² =
  15. 15.420² =
  16. 16.177² =
  17. 17.1763² =
  18. 18.996² =
  19. 19.541² =
  20. 20.322² =
  21. 21.693² =
  22. 22.700² =
  23. 23.665² =
  24. 24.750² =
  25. 25.3479² =
  26. 26.6260² =
  27. 27.8103² =
  28. 28.781² =
  29. 29.466² =
  30. 30.157² =
  31. 31.496² =
  32. 32.701² =
  33. 33.3807² =
  34. 34.329² =
  35. 35.393² =
  36. 36.284² =
  37. 37.3995² =
  38. 38.841² =
  39. 39.809² =
  40. 40.863² =

Answer key

  1. 70593604
  2. 562500
  3. 43283241
  4. 148996
  5. 26708224
  6. 376996
  7. 362404
  8. 662596
  9. 95481
  10. 12496225
  11. 6827769
  12. 79780624
  13. 118336
  14. 99420841
  15. 176400
  16. 31329
  17. 3108169
  18. 992016
  19. 292681
  20. 103684
  21. 480249
  22. 490000
  23. 442225
  24. 562500
  25. 12103441
  26. 39187600
  27. 65658609
  28. 609961
  29. 217156
  30. 24649
  31. 246016
  32. 491401
  33. 14493249
  34. 108241
  35. 154449
  36. 80656
  37. 15960025
  38. 707281
  39. 654481
  40. 744769

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