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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 250 · 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. 1.7751² =
  2. 2.788² =
  3. 3.300² =
  4. 4.729² =
  5. 5.181² =
  6. 6.864² =
  7. 7.685² =
  8. 8.118² =
  9. 9.217² =
  10. 10.2472² =
  11. 11.821² =
  12. 12.309² =
  13. 13.845² =
  14. 14.198² =
  15. 15.731² =
  16. 16.232² =
  17. 17.878² =
  18. 18.614² =
  19. 19.9439² =
  20. 20.5129² =
  21. 21.506² =
  22. 22.3599² =
  23. 23.9735² =
  24. 24.408² =
  25. 25.797² =
  26. 26.762² =
  27. 27.343² =
  28. 28.4697² =
  29. 29.290² =
  30. 30.827² =
  31. 31.1519² =
  32. 32.5029² =
  33. 33.329² =
  34. 34.839² =
  35. 35.116² =
  36. 36.933² =
  37. 37.627² =
  38. 38.783² =
  39. 39.961² =
  40. 40.6520² =

Answer key

  1. 60078001
  2. 620944
  3. 90000
  4. 531441
  5. 32761
  6. 746496
  7. 469225
  8. 13924
  9. 47089
  10. 6110784
  11. 674041
  12. 95481
  13. 714025
  14. 39204
  15. 534361
  16. 53824
  17. 770884
  18. 376996
  19. 89094721
  20. 26306641
  21. 256036
  22. 12952801
  23. 94770225
  24. 166464
  25. 635209
  26. 580644
  27. 117649
  28. 22061809
  29. 84100
  30. 683929
  31. 2307361
  32. 25290841
  33. 108241
  34. 703921
  35. 13456
  36. 870489
  37. 393129
  38. 613089
  39. 923521
  40. 42510400

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