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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 576 · 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. 1.746² =
  2. 2.595² =
  3. 3.421² =
  4. 4.511² =
  5. 5.487² =
  6. 6.932² =
  7. 7.349² =
  8. 8.295² =
  9. 9.151² =
  10. 10.3457² =
  11. 11.542² =
  12. 12.2585² =
  13. 13.237² =
  14. 14.527² =
  15. 15.888² =
  16. 16.541² =
  17. 17.6378² =
  18. 18.234² =
  19. 19.705² =
  20. 20.3095² =
  21. 21.428² =
  22. 22.538² =
  23. 23.838² =
  24. 24.778² =
  25. 25.857² =
  26. 26.7686² =
  27. 27.9517² =
  28. 28.391² =
  29. 29.213² =
  30. 30.9220² =
  31. 31.250² =
  32. 32.302² =
  33. 33.187² =
  34. 34.5012² =
  35. 35.4016² =
  36. 36.615² =
  37. 37.7700² =
  38. 38.862² =
  39. 39.745² =
  40. 40.356² =

Answer key

  1. 556516
  2. 354025
  3. 177241
  4. 261121
  5. 237169
  6. 868624
  7. 121801
  8. 87025
  9. 22801
  10. 11950849
  11. 293764
  12. 6682225
  13. 56169
  14. 277729
  15. 788544
  16. 292681
  17. 40678884
  18. 54756
  19. 497025
  20. 9579025
  21. 183184
  22. 289444
  23. 702244
  24. 605284
  25. 734449
  26. 59074596
  27. 90573289
  28. 152881
  29. 45369
  30. 85008400
  31. 62500
  32. 91204
  33. 34969
  34. 25120144
  35. 16128256
  36. 378225
  37. 59290000
  38. 743044
  39. 555025
  40. 126736

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