← 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 598 · 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. 1.233² =
  2. 2.8436² =
  3. 3.7685² =
  4. 4.740² =
  5. 5.6735² =
  6. 6.223² =
  7. 7.605² =
  8. 8.351² =
  9. 9.250² =
  10. 10.3516² =
  11. 11.3927² =
  12. 12.214² =
  13. 13.258² =
  14. 14.679² =
  15. 15.750² =
  16. 16.554² =
  17. 17.260² =
  18. 18.255² =
  19. 19.944² =
  20. 20.9604² =
  21. 21.912² =
  22. 22.5802² =
  23. 23.106² =
  24. 24.7537² =
  25. 25.8439² =
  26. 26.276² =
  27. 27.622² =
  28. 28.4133² =
  29. 29.3157² =
  30. 30.736² =
  31. 31.357² =
  32. 32.391² =
  33. 33.727² =
  34. 34.817² =
  35. 35.613² =
  36. 36.674² =
  37. 37.493² =
  38. 38.9958² =
  39. 39.974² =
  40. 40.978² =

Answer key

  1. 54289
  2. 71166096
  3. 59059225
  4. 547600
  5. 45360225
  6. 49729
  7. 366025
  8. 123201
  9. 62500
  10. 12362256
  11. 15421329
  12. 45796
  13. 66564
  14. 461041
  15. 562500
  16. 306916
  17. 67600
  18. 65025
  19. 891136
  20. 92236816
  21. 831744
  22. 33663204
  23. 11236
  24. 56806369
  25. 71216721
  26. 76176
  27. 386884
  28. 17081689
  29. 9966649
  30. 541696
  31. 127449
  32. 152881
  33. 528529
  34. 667489
  35. 375769
  36. 454276
  37. 243049
  38. 99161764
  39. 948676
  40. 956484

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