← 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 56 · 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. 1.454² =
  2. 2.2836² =
  3. 3.151² =
  4. 4.680² =
  5. 5.247² =
  6. 6.213² =
  7. 7.953² =
  8. 8.301² =
  9. 9.325² =
  10. 10.480² =
  11. 11.8400² =
  12. 12.7810² =
  13. 13.2527² =
  14. 14.424² =
  15. 15.499² =
  16. 16.6349² =
  17. 17.406² =
  18. 18.520² =
  19. 19.3888² =
  20. 20.8873² =
  21. 21.3342² =
  22. 22.358² =
  23. 23.264² =
  24. 24.212² =
  25. 25.1879² =
  26. 26.328² =
  27. 27.598² =
  28. 28.383² =
  29. 29.566² =
  30. 30.864² =
  31. 31.451² =
  32. 32.6316² =
  33. 33.614² =
  34. 34.872² =
  35. 35.695² =
  36. 36.209² =
  37. 37.970² =
  38. 38.1694² =
  39. 39.6884² =
  40. 40.298² =

Answer key

  1. 206116
  2. 8042896
  3. 22801
  4. 462400
  5. 61009
  6. 45369
  7. 908209
  8. 90601
  9. 105625
  10. 230400
  11. 70560000
  12. 60996100
  13. 6385729
  14. 179776
  15. 249001
  16. 40309801
  17. 164836
  18. 270400
  19. 15116544
  20. 78730129
  21. 11168964
  22. 128164
  23. 69696
  24. 44944
  25. 3530641
  26. 107584
  27. 357604
  28. 146689
  29. 320356
  30. 746496
  31. 203401
  32. 39891856
  33. 376996
  34. 760384
  35. 483025
  36. 43681
  37. 940900
  38. 2869636
  39. 47389456
  40. 88804

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