← 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 144 · 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. 1.297² =
  2. 2.166² =
  3. 3.910² =
  4. 4.348² =
  5. 5.168² =
  6. 6.3105² =
  7. 7.743² =
  8. 8.495² =
  9. 9.357² =
  10. 10.863² =
  11. 11.376² =
  12. 12.282² =
  13. 13.203² =
  14. 14.743² =
  15. 15.732² =
  16. 16.444² =
  17. 17.5327² =
  18. 18.7222² =
  19. 19.7488² =
  20. 20.608² =
  21. 21.8169² =
  22. 22.8262² =
  23. 23.2084² =
  24. 24.315² =
  25. 25.664² =
  26. 26.283² =
  27. 27.233² =
  28. 28.4301² =
  29. 29.3783² =
  30. 30.318² =
  31. 31.674² =
  32. 32.437² =
  33. 33.733² =
  34. 34.321² =
  35. 35.634² =
  36. 36.9605² =
  37. 37.5610² =
  38. 38.329² =
  39. 39.972² =
  40. 40.872² =

Answer key

  1. 88209
  2. 27556
  3. 828100
  4. 121104
  5. 28224
  6. 9641025
  7. 552049
  8. 245025
  9. 127449
  10. 744769
  11. 141376
  12. 79524
  13. 41209
  14. 552049
  15. 535824
  16. 197136
  17. 28376929
  18. 52157284
  19. 56070144
  20. 369664
  21. 66732561
  22. 68260644
  23. 4343056
  24. 99225
  25. 440896
  26. 80089
  27. 54289
  28. 18498601
  29. 14311089
  30. 101124
  31. 454276
  32. 190969
  33. 537289
  34. 103041
  35. 401956
  36. 92256025
  37. 31472100
  38. 108241
  39. 944784
  40. 760384

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