← 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 528 · 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. 1.530² =
  2. 2.526² =
  3. 3.286² =
  4. 4.752² =
  5. 5.131² =
  6. 6.4876² =
  7. 7.759² =
  8. 8.351² =
  9. 9.978² =
  10. 10.7500² =
  11. 11.2404² =
  12. 12.579² =
  13. 13.605² =
  14. 14.770² =
  15. 15.285² =
  16. 16.785² =
  17. 17.354² =
  18. 18.2044² =
  19. 19.579² =
  20. 20.208² =
  21. 21.333² =
  22. 22.225² =
  23. 23.211² =
  24. 24.748² =
  25. 25.2213² =
  26. 26.4756² =
  27. 27.8201² =
  28. 28.392² =
  29. 29.1933² =
  30. 30.869² =
  31. 31.134² =
  32. 32.859² =
  33. 33.646² =
  34. 34.213² =
  35. 35.372² =
  36. 36.372² =
  37. 37.1797² =
  38. 38.943² =
  39. 39.802² =
  40. 40.104² =

Answer key

  1. 280900
  2. 276676
  3. 81796
  4. 565504
  5. 17161
  6. 23775376
  7. 576081
  8. 123201
  9. 956484
  10. 56250000
  11. 5779216
  12. 335241
  13. 366025
  14. 592900
  15. 81225
  16. 616225
  17. 125316
  18. 4177936
  19. 335241
  20. 43264
  21. 110889
  22. 50625
  23. 44521
  24. 559504
  25. 4897369
  26. 22619536
  27. 67256401
  28. 153664
  29. 3736489
  30. 755161
  31. 17956
  32. 737881
  33. 417316
  34. 45369
  35. 138384
  36. 138384
  37. 3229209
  38. 889249
  39. 643204
  40. 10816

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