← 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 643 · 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. 1.1168² =
  2. 2.103² =
  3. 3.7450² =
  4. 4.4754² =
  5. 5.712² =
  6. 6.194² =
  7. 7.833² =
  8. 8.7571² =
  9. 9.9567² =
  10. 10.714² =
  11. 11.524² =
  12. 12.581² =
  13. 13.590² =
  14. 14.232² =
  15. 15.4654² =
  16. 16.588² =
  17. 17.259² =
  18. 18.707² =
  19. 19.489² =
  20. 20.8072² =
  21. 21.630² =
  22. 22.620² =
  23. 23.427² =
  24. 24.877² =
  25. 25.2242² =
  26. 26.154² =
  27. 27.243² =
  28. 28.962² =
  29. 29.651² =
  30. 30.228² =
  31. 31.572² =
  32. 32.287² =
  33. 33.210² =
  34. 34.992² =
  35. 35.170² =
  36. 36.244² =
  37. 37.7141² =
  38. 38.5559² =
  39. 39.543² =
  40. 40.6172² =

Answer key

  1. 1364224
  2. 10609
  3. 55502500
  4. 22600516
  5. 506944
  6. 37636
  7. 693889
  8. 57320041
  9. 91527489
  10. 509796
  11. 274576
  12. 337561
  13. 348100
  14. 53824
  15. 21659716
  16. 345744
  17. 67081
  18. 499849
  19. 239121
  20. 65157184
  21. 396900
  22. 384400
  23. 182329
  24. 769129
  25. 5026564
  26. 23716
  27. 59049
  28. 925444
  29. 423801
  30. 51984
  31. 327184
  32. 82369
  33. 44100
  34. 984064
  35. 28900
  36. 59536
  37. 50993881
  38. 30902481
  39. 294849
  40. 38093584

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