← 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 30 · 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. 1.426² =
  2. 2.4080² =
  3. 3.292² =
  4. 4.2041² =
  5. 5.556² =
  6. 6.464² =
  7. 7.526² =
  8. 8.207² =
  9. 9.592² =
  10. 10.7332² =
  11. 11.3084² =
  12. 12.3440² =
  13. 13.453² =
  14. 14.287² =
  15. 15.6984² =
  16. 16.175² =
  17. 17.189² =
  18. 18.730² =
  19. 19.2542² =
  20. 20.884² =
  21. 21.4250² =
  22. 22.318² =
  23. 23.954² =
  24. 24.952² =
  25. 25.652² =
  26. 26.5201² =
  27. 27.307² =
  28. 28.905² =
  29. 29.3285² =
  30. 30.130² =
  31. 31.588² =
  32. 32.966² =
  33. 33.453² =
  34. 34.535² =
  35. 35.3056² =
  36. 36.127² =
  37. 37.3273² =
  38. 38.133² =
  39. 39.252² =
  40. 40.323² =

Answer key

  1. 181476
  2. 16646400
  3. 85264
  4. 4165681
  5. 309136
  6. 215296
  7. 276676
  8. 42849
  9. 350464
  10. 53758224
  11. 9511056
  12. 11833600
  13. 205209
  14. 82369
  15. 48776256
  16. 30625
  17. 35721
  18. 532900
  19. 6461764
  20. 781456
  21. 18062500
  22. 101124
  23. 910116
  24. 906304
  25. 425104
  26. 27050401
  27. 94249
  28. 819025
  29. 10791225
  30. 16900
  31. 345744
  32. 933156
  33. 205209
  34. 286225
  35. 9339136
  36. 16129
  37. 10712529
  38. 17689
  39. 63504
  40. 104329

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