← 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 366 · 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. 1.706² =
  2. 2.186² =
  3. 3.523² =
  4. 4.511² =
  5. 5.623² =
  6. 6.777² =
  7. 7.220² =
  8. 8.861² =
  9. 9.285² =
  10. 10.6361² =
  11. 11.241² =
  12. 12.427² =
  13. 13.332² =
  14. 14.303² =
  15. 15.891² =
  16. 16.9716² =
  17. 17.362² =
  18. 18.1807² =
  19. 19.103² =
  20. 20.7878² =
  21. 21.874² =
  22. 22.445² =
  23. 23.892² =
  24. 24.3009² =
  25. 25.610² =
  26. 26.403² =
  27. 27.9790² =
  28. 28.3427² =
  29. 29.9802² =
  30. 30.659² =
  31. 31.963² =
  32. 32.120² =
  33. 33.937² =
  34. 34.881² =
  35. 35.701² =
  36. 36.271² =
  37. 37.1690² =
  38. 38.759² =
  39. 39.5611² =
  40. 40.943² =

Answer key

  1. 498436
  2. 34596
  3. 273529
  4. 261121
  5. 388129
  6. 603729
  7. 48400
  8. 741321
  9. 81225
  10. 40462321
  11. 58081
  12. 182329
  13. 110224
  14. 91809
  15. 793881
  16. 94400656
  17. 131044
  18. 3265249
  19. 10609
  20. 62062884
  21. 763876
  22. 198025
  23. 795664
  24. 9054081
  25. 372100
  26. 162409
  27. 95844100
  28. 11744329
  29. 96079204
  30. 434281
  31. 927369
  32. 14400
  33. 877969
  34. 776161
  35. 491401
  36. 73441
  37. 2856100
  38. 576081
  39. 31483321
  40. 889249

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