← 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 296 · 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. 1.2309² =
  2. 2.815² =
  3. 3.440² =
  4. 4.760² =
  5. 5.305² =
  6. 6.315² =
  7. 7.118² =
  8. 8.407² =
  9. 9.5008² =
  10. 10.760² =
  11. 11.2377² =
  12. 12.754² =
  13. 13.309² =
  14. 14.891² =
  15. 15.706² =
  16. 16.554² =
  17. 17.130² =
  18. 18.138² =
  19. 19.157² =
  20. 20.891² =
  21. 21.486² =
  22. 22.804² =
  23. 23.3522² =
  24. 24.2834² =
  25. 25.856² =
  26. 26.978² =
  27. 27.210² =
  28. 28.653² =
  29. 29.876² =
  30. 30.240² =
  31. 31.494² =
  32. 32.322² =
  33. 33.4744² =
  34. 34.748² =
  35. 35.237² =
  36. 36.692² =
  37. 37.422² =
  38. 38.391² =
  39. 39.671² =
  40. 40.207² =

Answer key

  1. 5331481
  2. 664225
  3. 193600
  4. 577600
  5. 93025
  6. 99225
  7. 13924
  8. 165649
  9. 25080064
  10. 577600
  11. 5650129
  12. 568516
  13. 95481
  14. 793881
  15. 498436
  16. 306916
  17. 16900
  18. 19044
  19. 24649
  20. 793881
  21. 236196
  22. 646416
  23. 12404484
  24. 8031556
  25. 732736
  26. 956484
  27. 44100
  28. 426409
  29. 767376
  30. 57600
  31. 244036
  32. 103684
  33. 22505536
  34. 559504
  35. 56169
  36. 478864
  37. 178084
  38. 152881
  39. 450241
  40. 42849

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