← 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 388 · 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. 1.733² =
  2. 2.9231² =
  3. 3.491² =
  4. 4.4971² =
  5. 5.244² =
  6. 6.442² =
  7. 7.939² =
  8. 8.142² =
  9. 9.612² =
  10. 10.1030² =
  11. 11.384² =
  12. 12.3585² =
  13. 13.2891² =
  14. 14.636² =
  15. 15.3131² =
  16. 16.6920² =
  17. 17.3791² =
  18. 18.7803² =
  19. 19.760² =
  20. 20.254² =
  21. 21.961² =
  22. 22.3863² =
  23. 23.8820² =
  24. 24.6631² =
  25. 25.206² =
  26. 26.173² =
  27. 27.303² =
  28. 28.2207² =
  29. 29.483² =
  30. 30.328² =
  31. 31.980² =
  32. 32.3438² =
  33. 33.718² =
  34. 34.677² =
  35. 35.463² =
  36. 36.298² =
  37. 37.568² =
  38. 38.709² =
  39. 39.552² =
  40. 40.7977² =

Answer key

  1. 537289
  2. 85211361
  3. 241081
  4. 24710841
  5. 59536
  6. 195364
  7. 881721
  8. 20164
  9. 374544
  10. 1060900
  11. 147456
  12. 12852225
  13. 8357881
  14. 404496
  15. 9803161
  16. 47886400
  17. 14371681
  18. 60886809
  19. 577600
  20. 64516
  21. 923521
  22. 14922769
  23. 77792400
  24. 43970161
  25. 42436
  26. 29929
  27. 91809
  28. 4870849
  29. 233289
  30. 107584
  31. 960400
  32. 11819844
  33. 515524
  34. 458329
  35. 214369
  36. 88804
  37. 322624
  38. 502681
  39. 304704
  40. 63632529

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