← 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 785 · 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. 1.1240² =
  2. 2.409² =
  3. 3.5013² =
  4. 4.956² =
  5. 5.742² =
  6. 6.933² =
  7. 7.728² =
  8. 8.4845² =
  9. 9.9044² =
  10. 10.8989² =
  11. 11.7992² =
  12. 12.915² =
  13. 13.283² =
  14. 14.365² =
  15. 15.816² =
  16. 16.457² =
  17. 17.961² =
  18. 18.744² =
  19. 19.241² =
  20. 20.815² =
  21. 21.378² =
  22. 22.196² =
  23. 23.783² =
  24. 24.271² =
  25. 25.750² =
  26. 26.947² =
  27. 27.885² =
  28. 28.3434² =
  29. 29.984² =
  30. 30.243² =
  31. 31.5104² =
  32. 32.4995² =
  33. 33.9527² =
  34. 34.915² =
  35. 35.479² =
  36. 36.875² =
  37. 37.807² =
  38. 38.5593² =
  39. 39.621² =
  40. 40.730² =

Answer key

  1. 1537600
  2. 167281
  3. 25130169
  4. 913936
  5. 550564
  6. 870489
  7. 529984
  8. 23474025
  9. 81793936
  10. 80802121
  11. 63872064
  12. 837225
  13. 80089
  14. 133225
  15. 665856
  16. 208849
  17. 923521
  18. 553536
  19. 58081
  20. 664225
  21. 142884
  22. 38416
  23. 613089
  24. 73441
  25. 562500
  26. 896809
  27. 783225
  28. 11792356
  29. 968256
  30. 59049
  31. 26050816
  32. 24950025
  33. 90763729
  34. 837225
  35. 229441
  36. 765625
  37. 651249
  38. 31281649
  39. 385641
  40. 532900

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