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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 302 · 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. 1.584² =
  2. 2.639² =
  3. 3.365² =
  4. 4.226² =
  5. 5.6287² =
  6. 6.646² =
  7. 7.9097² =
  8. 8.247² =
  9. 9.3453² =
  10. 10.455² =
  11. 11.6642² =
  12. 12.744² =
  13. 13.932² =
  14. 14.296² =
  15. 15.799² =
  16. 16.388² =
  17. 17.402² =
  18. 18.424² =
  19. 19.980² =
  20. 20.9162² =
  21. 21.317² =
  22. 22.253² =
  23. 23.826² =
  24. 24.1935² =
  25. 25.230² =
  26. 26.711² =
  27. 27.4902² =
  28. 28.142² =
  29. 29.326² =
  30. 30.2309² =
  31. 31.7430² =
  32. 32.256² =
  33. 33.6817² =
  34. 34.781² =
  35. 35.4396² =
  36. 36.736² =
  37. 37.410² =
  38. 38.4370² =
  39. 39.3132² =
  40. 40.518² =

Answer key

  1. 341056
  2. 408321
  3. 133225
  4. 51076
  5. 39526369
  6. 417316
  7. 82755409
  8. 61009
  9. 11923209
  10. 207025
  11. 44116164
  12. 553536
  13. 868624
  14. 87616
  15. 638401
  16. 150544
  17. 161604
  18. 179776
  19. 960400
  20. 83942244
  21. 100489
  22. 64009
  23. 682276
  24. 3744225
  25. 52900
  26. 505521
  27. 24029604
  28. 20164
  29. 106276
  30. 5331481
  31. 55204900
  32. 65536
  33. 46471489
  34. 609961
  35. 19324816
  36. 541696
  37. 168100
  38. 19096900
  39. 9809424
  40. 268324

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