← 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 104 · 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. 1.108² =
  2. 2.161² =
  3. 3.896² =
  4. 4.2410² =
  5. 5.872² =
  6. 6.798² =
  7. 7.904² =
  8. 8.229² =
  9. 9.607² =
  10. 10.7272² =
  11. 11.513² =
  12. 12.304² =
  13. 13.821² =
  14. 14.9399² =
  15. 15.348² =
  16. 16.257² =
  17. 17.367² =
  18. 18.522² =
  19. 19.420² =
  20. 20.244² =
  21. 21.2041² =
  22. 22.236² =
  23. 23.931² =
  24. 24.2867² =
  25. 25.2590² =
  26. 26.918² =
  27. 27.349² =
  28. 28.945² =
  29. 29.225² =
  30. 30.851² =
  31. 31.1657² =
  32. 32.559² =
  33. 33.1702² =
  34. 34.915² =
  35. 35.6101² =
  36. 36.1884² =
  37. 37.768² =
  38. 38.2427² =
  39. 39.375² =
  40. 40.604² =

Answer key

  1. 11664
  2. 25921
  3. 802816
  4. 5808100
  5. 760384
  6. 636804
  7. 817216
  8. 52441
  9. 368449
  10. 52881984
  11. 263169
  12. 92416
  13. 674041
  14. 88341201
  15. 121104
  16. 66049
  17. 134689
  18. 272484
  19. 176400
  20. 59536
  21. 4165681
  22. 55696
  23. 866761
  24. 8219689
  25. 6708100
  26. 842724
  27. 121801
  28. 893025
  29. 50625
  30. 724201
  31. 2745649
  32. 312481
  33. 2896804
  34. 837225
  35. 37222201
  36. 3549456
  37. 589824
  38. 5890329
  39. 140625
  40. 364816

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