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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 763 · 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. 1.467² =
  2. 2.6163² =
  3. 3.937² =
  4. 4.142² =
  5. 5.731² =
  6. 6.884² =
  7. 7.8063² =
  8. 8.3035² =
  9. 9.1791² =
  10. 10.725² =
  11. 11.895² =
  12. 12.8027² =
  13. 13.5428² =
  14. 14.838² =
  15. 15.722² =
  16. 16.359² =
  17. 17.142² =
  18. 18.118² =
  19. 19.154² =
  20. 20.292² =
  21. 21.866² =
  22. 22.4581² =
  23. 23.174² =
  24. 24.340² =
  25. 25.732² =
  26. 26.3307² =
  27. 27.1954² =
  28. 28.151² =
  29. 29.986² =
  30. 30.5754² =
  31. 31.812² =
  32. 32.143² =
  33. 33.652² =
  34. 34.506² =
  35. 35.1673² =
  36. 36.125² =
  37. 37.996² =
  38. 38.952² =
  39. 39.964² =
  40. 40.878² =

Answer key

  1. 218089
  2. 37982569
  3. 877969
  4. 20164
  5. 534361
  6. 781456
  7. 65011969
  8. 9211225
  9. 3207681
  10. 525625
  11. 801025
  12. 64432729
  13. 29463184
  14. 702244
  15. 521284
  16. 128881
  17. 20164
  18. 13924
  19. 23716
  20. 85264
  21. 749956
  22. 20985561
  23. 30276
  24. 115600
  25. 535824
  26. 10936249
  27. 3818116
  28. 22801
  29. 972196
  30. 33108516
  31. 659344
  32. 20449
  33. 425104
  34. 256036
  35. 2798929
  36. 15625
  37. 992016
  38. 906304
  39. 929296
  40. 770884

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