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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 459 · 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. 1.992² =
  2. 2.6437² =
  3. 3.757² =
  4. 4.459² =
  5. 5.4151² =
  6. 6.752² =
  7. 7.984² =
  8. 8.763² =
  9. 9.4232² =
  10. 10.980² =
  11. 11.9173² =
  12. 12.610² =
  13. 13.707² =
  14. 14.7703² =
  15. 15.8600² =
  16. 16.743² =
  17. 17.3589² =
  18. 18.687² =
  19. 19.229² =
  20. 20.771² =
  21. 21.5579² =
  22. 22.731² =
  23. 23.9601² =
  24. 24.633² =
  25. 25.907² =
  26. 26.657² =
  27. 27.6609² =
  28. 28.153² =
  29. 29.918² =
  30. 30.174² =
  31. 31.3101² =
  32. 32.9276² =
  33. 33.5867² =
  34. 34.386² =
  35. 35.225² =
  36. 36.121² =
  37. 37.998² =
  38. 38.5983² =
  39. 39.3006² =
  40. 40.1914² =

Answer key

  1. 984064
  2. 41434969
  3. 573049
  4. 210681
  5. 17230801
  6. 565504
  7. 968256
  8. 582169
  9. 17909824
  10. 960400
  11. 84143929
  12. 372100
  13. 499849
  14. 59336209
  15. 73960000
  16. 552049
  17. 12880921
  18. 471969
  19. 52441
  20. 594441
  21. 31125241
  22. 534361
  23. 92179201
  24. 400689
  25. 822649
  26. 431649
  27. 43678881
  28. 23409
  29. 842724
  30. 30276
  31. 9616201
  32. 86044176
  33. 34421689
  34. 148996
  35. 50625
  36. 14641
  37. 996004
  38. 35796289
  39. 9036036
  40. 3663396

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