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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 555 · 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. 1.645² =
  2. 2.287² =
  3. 3.7048² =
  4. 4.287² =
  5. 5.9804² =
  6. 6.3709² =
  7. 7.273² =
  8. 8.2827² =
  9. 9.168² =
  10. 10.292² =
  11. 11.237² =
  12. 12.203² =
  13. 13.441² =
  14. 14.375² =
  15. 15.3574² =
  16. 16.368² =
  17. 17.237² =
  18. 18.630² =
  19. 19.392² =
  20. 20.793² =
  21. 21.544² =
  22. 22.2679² =
  23. 23.1139² =
  24. 24.213² =
  25. 25.1521² =
  26. 26.854² =
  27. 27.3755² =
  28. 28.610² =
  29. 29.5603² =
  30. 30.7723² =
  31. 31.594² =
  32. 32.674² =
  33. 33.6479² =
  34. 34.410² =
  35. 35.231² =
  36. 36.296² =
  37. 37.5846² =
  38. 38.582² =
  39. 39.2368² =
  40. 40.6995² =

Answer key

  1. 416025
  2. 82369
  3. 49674304
  4. 82369
  5. 96118416
  6. 13756681
  7. 74529
  8. 7991929
  9. 28224
  10. 85264
  11. 56169
  12. 41209
  13. 194481
  14. 140625
  15. 12773476
  16. 135424
  17. 56169
  18. 396900
  19. 153664
  20. 628849
  21. 295936
  22. 7177041
  23. 1297321
  24. 45369
  25. 2313441
  26. 729316
  27. 14100025
  28. 372100
  29. 31393609
  30. 59644729
  31. 352836
  32. 454276
  33. 41977441
  34. 168100
  35. 53361
  36. 87616
  37. 34175716
  38. 338724
  39. 5607424
  40. 48930025

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