← 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 393 · 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. 1.4985² =
  2. 2.844² =
  3. 3.775² =
  4. 4.920² =
  5. 5.540² =
  6. 6.7553² =
  7. 7.8180² =
  8. 8.136² =
  9. 9.116² =
  10. 10.781² =
  11. 11.5162² =
  12. 12.718² =
  13. 13.816² =
  14. 14.2214² =
  15. 15.669² =
  16. 16.334² =
  17. 17.589² =
  18. 18.806² =
  19. 19.437² =
  20. 20.923² =
  21. 21.464² =
  22. 22.105² =
  23. 23.993² =
  24. 24.576² =
  25. 25.662² =
  26. 26.917² =
  27. 27.428² =
  28. 28.112² =
  29. 29.249² =
  30. 30.394² =
  31. 31.1945² =
  32. 32.504² =
  33. 33.635² =
  34. 34.310² =
  35. 35.3530² =
  36. 36.143² =
  37. 37.333² =
  38. 38.4265² =
  39. 39.893² =
  40. 40.669² =

Answer key

  1. 24850225
  2. 712336
  3. 600625
  4. 846400
  5. 291600
  6. 57047809
  7. 66912400
  8. 18496
  9. 13456
  10. 609961
  11. 26646244
  12. 515524
  13. 665856
  14. 4901796
  15. 447561
  16. 111556
  17. 346921
  18. 649636
  19. 190969
  20. 851929
  21. 215296
  22. 11025
  23. 986049
  24. 331776
  25. 438244
  26. 840889
  27. 183184
  28. 12544
  29. 62001
  30. 155236
  31. 3783025
  32. 254016
  33. 403225
  34. 96100
  35. 12460900
  36. 20449
  37. 110889
  38. 18190225
  39. 797449
  40. 447561

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