← 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 897 · 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. 1.975² =
  2. 2.218² =
  3. 3.879² =
  4. 4.9024² =
  5. 5.462² =
  6. 6.9520² =
  7. 7.750² =
  8. 8.7230² =
  9. 9.8799² =
  10. 10.817² =
  11. 11.691² =
  12. 12.313² =
  13. 13.3074² =
  14. 14.680² =
  15. 15.765² =
  16. 16.622² =
  17. 17.270² =
  18. 18.177² =
  19. 19.373² =
  20. 20.324² =
  21. 21.1454² =
  22. 22.876² =
  23. 23.453² =
  24. 24.4407² =
  25. 25.418² =
  26. 26.285² =
  27. 27.258² =
  28. 28.947² =
  29. 29.7281² =
  30. 30.5525² =
  31. 31.9227² =
  32. 32.922² =
  33. 33.331² =
  34. 34.394² =
  35. 35.440² =
  36. 36.319² =
  37. 37.644² =
  38. 38.5926² =
  39. 39.1837² =
  40. 40.691² =

Answer key

  1. 950625
  2. 47524
  3. 772641
  4. 81432576
  5. 213444
  6. 90630400
  7. 562500
  8. 52272900
  9. 77422401
  10. 667489
  11. 477481
  12. 97969
  13. 9449476
  14. 462400
  15. 585225
  16. 386884
  17. 72900
  18. 31329
  19. 139129
  20. 104976
  21. 2114116
  22. 767376
  23. 205209
  24. 19421649
  25. 174724
  26. 81225
  27. 66564
  28. 896809
  29. 53012961
  30. 30525625
  31. 85137529
  32. 850084
  33. 109561
  34. 155236
  35. 193600
  36. 101761
  37. 414736
  38. 35117476
  39. 3374569
  40. 477481

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