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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 514 · 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. 1.943² =
  2. 2.9413² =
  3. 3.1039² =
  4. 4.4249² =
  5. 5.3695² =
  6. 6.202² =
  7. 7.444² =
  8. 8.111² =
  9. 9.311² =
  10. 10.558² =
  11. 11.8410² =
  12. 12.2188² =
  13. 13.730² =
  14. 14.498² =
  15. 15.778² =
  16. 16.8905² =
  17. 17.176² =
  18. 18.934² =
  19. 19.474² =
  20. 20.1914² =
  21. 21.736² =
  22. 22.9432² =
  23. 23.141² =
  24. 24.431² =
  25. 25.9473² =
  26. 26.124² =
  27. 27.8965² =
  28. 28.729² =
  29. 29.2254² =
  30. 30.403² =
  31. 31.9055² =
  32. 32.741² =
  33. 33.608² =
  34. 34.703² =
  35. 35.300² =
  36. 36.467² =
  37. 37.469² =
  38. 38.152² =
  39. 39.670² =
  40. 40.111² =

Answer key

  1. 889249
  2. 88604569
  3. 1079521
  4. 18054001
  5. 13653025
  6. 40804
  7. 197136
  8. 12321
  9. 96721
  10. 311364
  11. 70728100
  12. 4787344
  13. 532900
  14. 248004
  15. 605284
  16. 79299025
  17. 30976
  18. 872356
  19. 224676
  20. 3663396
  21. 541696
  22. 88962624
  23. 19881
  24. 185761
  25. 89737729
  26. 15376
  27. 80371225
  28. 531441
  29. 5080516
  30. 162409
  31. 81993025
  32. 549081
  33. 369664
  34. 494209
  35. 90000
  36. 218089
  37. 219961
  38. 23104
  39. 448900
  40. 12321

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