← 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 141 · 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. 1.9418² =
  2. 2.9461² =
  3. 3.7383² =
  4. 4.977² =
  5. 5.614² =
  6. 6.157² =
  7. 7.8294² =
  8. 8.864² =
  9. 9.528² =
  10. 10.282² =
  11. 11.665² =
  12. 12.452² =
  13. 13.655² =
  14. 14.7435² =
  15. 15.138² =
  16. 16.169² =
  17. 17.7454² =
  18. 18.181² =
  19. 19.4842² =
  20. 20.311² =
  21. 21.3733² =
  22. 22.6218² =
  23. 23.7155² =
  24. 24.8974² =
  25. 25.8194² =
  26. 26.968² =
  27. 27.398² =
  28. 28.1125² =
  29. 29.7196² =
  30. 30.959² =
  31. 31.110² =
  32. 32.302² =
  33. 33.710² =
  34. 34.986² =
  35. 35.932² =
  36. 36.7145² =
  37. 37.835² =
  38. 38.764² =
  39. 39.174² =
  40. 40.5746² =

Answer key

  1. 88698724
  2. 89510521
  3. 54508689
  4. 954529
  5. 376996
  6. 24649
  7. 68790436
  8. 746496
  9. 278784
  10. 79524
  11. 442225
  12. 204304
  13. 429025
  14. 55279225
  15. 19044
  16. 28561
  17. 55562116
  18. 32761
  19. 23444964
  20. 96721
  21. 13935289
  22. 38663524
  23. 51194025
  24. 80532676
  25. 67141636
  26. 937024
  27. 158404
  28. 1265625
  29. 51782416
  30. 919681
  31. 12100
  32. 91204
  33. 504100
  34. 972196
  35. 868624
  36. 51051025
  37. 697225
  38. 583696
  39. 30276
  40. 33016516

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