← 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 821 · 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. 1.110² =
  2. 2.683² =
  3. 3.486² =
  4. 4.4404² =
  5. 5.346² =
  6. 6.3226² =
  7. 7.6149² =
  8. 8.433² =
  9. 9.727² =
  10. 10.425² =
  11. 11.120² =
  12. 12.158² =
  13. 13.429² =
  14. 14.548² =
  15. 15.605² =
  16. 16.9008² =
  17. 17.336² =
  18. 18.302² =
  19. 19.552² =
  20. 20.336² =
  21. 21.344² =
  22. 22.6496² =
  23. 23.649² =
  24. 24.522² =
  25. 25.720² =
  26. 26.197² =
  27. 27.234² =
  28. 28.6046² =
  29. 29.694² =
  30. 30.4696² =
  31. 31.263² =
  32. 32.384² =
  33. 33.230² =
  34. 34.4938² =
  35. 35.5588² =
  36. 36.343² =
  37. 37.500² =
  38. 38.423² =
  39. 39.147² =
  40. 40.5864² =

Answer key

  1. 12100
  2. 466489
  3. 236196
  4. 19395216
  5. 119716
  6. 10407076
  7. 37810201
  8. 187489
  9. 528529
  10. 180625
  11. 14400
  12. 24964
  13. 184041
  14. 300304
  15. 366025
  16. 81144064
  17. 112896
  18. 91204
  19. 304704
  20. 112896
  21. 118336
  22. 42198016
  23. 421201
  24. 272484
  25. 518400
  26. 38809
  27. 54756
  28. 36554116
  29. 481636
  30. 22052416
  31. 69169
  32. 147456
  33. 52900
  34. 24383844
  35. 31225744
  36. 117649
  37. 250000
  38. 178929
  39. 21609
  40. 34386496

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