← 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 423 · 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. 1.719² =
  2. 2.626² =
  3. 3.149² =
  4. 4.833² =
  5. 5.951² =
  6. 6.563² =
  7. 7.4381² =
  8. 8.3734² =
  9. 9.798² =
  10. 10.136² =
  11. 11.453² =
  12. 12.442² =
  13. 13.7456² =
  14. 14.428² =
  15. 15.2668² =
  16. 16.431² =
  17. 17.5896² =
  18. 18.923² =
  19. 19.255² =
  20. 20.1688² =
  21. 21.9142² =
  22. 22.2613² =
  23. 23.343² =
  24. 24.911² =
  25. 25.212² =
  26. 26.876² =
  27. 27.170² =
  28. 28.671² =
  29. 29.863² =
  30. 30.874² =
  31. 31.6655² =
  32. 32.3968² =
  33. 33.594² =
  34. 34.720² =
  35. 35.5123² =
  36. 36.2161² =
  37. 37.535² =
  38. 38.801² =
  39. 39.540² =
  40. 40.500² =

Answer key

  1. 516961
  2. 391876
  3. 22201
  4. 693889
  5. 904401
  6. 316969
  7. 19193161
  8. 13942756
  9. 636804
  10. 18496
  11. 205209
  12. 195364
  13. 55591936
  14. 183184
  15. 7118224
  16. 185761
  17. 34762816
  18. 851929
  19. 65025
  20. 2849344
  21. 83576164
  22. 6827769
  23. 117649
  24. 829921
  25. 44944
  26. 767376
  27. 28900
  28. 450241
  29. 744769
  30. 763876
  31. 44289025
  32. 15745024
  33. 352836
  34. 518400
  35. 26245129
  36. 4669921
  37. 286225
  38. 641601
  39. 291600
  40. 250000

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