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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 658 · 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. 1.3368² =
  2. 2.496² =
  3. 3.609² =
  4. 4.8365² =
  5. 5.191² =
  6. 6.5650² =
  7. 7.8199² =
  8. 8.923² =
  9. 9.2306² =
  10. 10.1464² =
  11. 11.1761² =
  12. 12.7134² =
  13. 13.7062² =
  14. 14.954² =
  15. 15.3409² =
  16. 16.4439² =
  17. 17.284² =
  18. 18.219² =
  19. 19.343² =
  20. 20.911² =
  21. 21.117² =
  22. 22.355² =
  23. 23.3635² =
  24. 24.421² =
  25. 25.3999² =
  26. 26.664² =
  27. 27.1007² =
  28. 28.161² =
  29. 29.359² =
  30. 30.403² =
  31. 31.2976² =
  32. 32.7884² =
  33. 33.2529² =
  34. 34.537² =
  35. 35.347² =
  36. 36.755² =
  37. 37.254² =
  38. 38.7556² =
  39. 39.205² =
  40. 40.470² =

Answer key

  1. 11343424
  2. 246016
  3. 370881
  4. 69973225
  5. 36481
  6. 31922500
  7. 67223601
  8. 851929
  9. 5317636
  10. 2143296
  11. 3101121
  12. 50893956
  13. 49871844
  14. 910116
  15. 11621281
  16. 19704721
  17. 80656
  18. 47961
  19. 117649
  20. 829921
  21. 13689
  22. 126025
  23. 13213225
  24. 177241
  25. 15992001
  26. 440896
  27. 1014049
  28. 25921
  29. 128881
  30. 162409
  31. 8856576
  32. 62157456
  33. 6395841
  34. 288369
  35. 120409
  36. 570025
  37. 64516
  38. 57093136
  39. 42025
  40. 220900

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