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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 327 · 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. 1.1818² =
  2. 2.9054² =
  3. 3.9782² =
  4. 4.509² =
  5. 5.238² =
  6. 6.106² =
  7. 7.966² =
  8. 8.503² =
  9. 9.280² =
  10. 10.4798² =
  11. 11.447² =
  12. 12.413² =
  13. 13.675² =
  14. 14.834² =
  15. 15.9381² =
  16. 16.818² =
  17. 17.228² =
  18. 18.360² =
  19. 19.159² =
  20. 20.174² =
  21. 21.802² =
  22. 22.9825² =
  23. 23.549² =
  24. 24.376² =
  25. 25.911² =
  26. 26.117² =
  27. 27.7758² =
  28. 28.3104² =
  29. 29.6333² =
  30. 30.3180² =
  31. 31.106² =
  32. 32.664² =
  33. 33.182² =
  34. 34.829² =
  35. 35.525² =
  36. 36.211² =
  37. 37.2144² =
  38. 38.464² =
  39. 39.9570² =
  40. 40.590² =

Answer key

  1. 3305124
  2. 81974916
  3. 95687524
  4. 259081
  5. 56644
  6. 11236
  7. 933156
  8. 253009
  9. 78400
  10. 23020804
  11. 199809
  12. 170569
  13. 455625
  14. 695556
  15. 88003161
  16. 669124
  17. 51984
  18. 129600
  19. 25281
  20. 30276
  21. 643204
  22. 96530625
  23. 301401
  24. 141376
  25. 829921
  26. 13689
  27. 60186564
  28. 9634816
  29. 40106889
  30. 10112400
  31. 11236
  32. 440896
  33. 33124
  34. 687241
  35. 275625
  36. 44521
  37. 4596736
  38. 215296
  39. 91584900
  40. 348100

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