← 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 369 · 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. 1.3855² =
  2. 2.3189² =
  3. 3.479² =
  4. 4.7878² =
  5. 5.106² =
  6. 6.809² =
  7. 7.587² =
  8. 8.900² =
  9. 9.601² =
  10. 10.8267² =
  11. 11.518² =
  12. 12.289² =
  13. 13.4275² =
  14. 14.283² =
  15. 15.592² =
  16. 16.5097² =
  17. 17.277² =
  18. 18.371² =
  19. 19.256² =
  20. 20.264² =
  21. 21.7974² =
  22. 22.420² =
  23. 23.428² =
  24. 24.780² =
  25. 25.290² =
  26. 26.799² =
  27. 27.826² =
  28. 28.118² =
  29. 29.109² =
  30. 30.878² =
  31. 31.459² =
  32. 32.711² =
  33. 33.3151² =
  34. 34.764² =
  35. 35.2868² =
  36. 36.443² =
  37. 37.300² =
  38. 38.191² =
  39. 39.173² =
  40. 40.633² =

Answer key

  1. 14861025
  2. 10169721
  3. 229441
  4. 62062884
  5. 11236
  6. 654481
  7. 344569
  8. 810000
  9. 361201
  10. 68343289
  11. 268324
  12. 83521
  13. 18275625
  14. 80089
  15. 350464
  16. 25979409
  17. 76729
  18. 137641
  19. 65536
  20. 69696
  21. 63584676
  22. 176400
  23. 183184
  24. 608400
  25. 84100
  26. 638401
  27. 682276
  28. 13924
  29. 11881
  30. 770884
  31. 210681
  32. 505521
  33. 9928801
  34. 583696
  35. 8225424
  36. 196249
  37. 90000
  38. 36481
  39. 29929
  40. 400689

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