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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 765 · 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. 1.336² =
  2. 2.915² =
  3. 3.113² =
  4. 4.863² =
  5. 5.200² =
  6. 6.144² =
  7. 7.255² =
  8. 8.577² =
  9. 9.897² =
  10. 10.384² =
  11. 11.894² =
  12. 12.1211² =
  13. 13.271² =
  14. 14.588² =
  15. 15.379² =
  16. 16.774² =
  17. 17.2090² =
  18. 18.285² =
  19. 19.860² =
  20. 20.181² =
  21. 21.160² =
  22. 22.6520² =
  23. 23.7571² =
  24. 24.159² =
  25. 25.5243² =
  26. 26.631² =
  27. 27.661² =
  28. 28.274² =
  29. 29.158² =
  30. 30.822² =
  31. 31.711² =
  32. 32.538² =
  33. 33.6071² =
  34. 34.470² =
  35. 35.4005² =
  36. 36.7505² =
  37. 37.8626² =
  38. 38.2303² =
  39. 39.529² =
  40. 40.733² =

Answer key

  1. 112896
  2. 837225
  3. 12769
  4. 744769
  5. 40000
  6. 20736
  7. 65025
  8. 332929
  9. 804609
  10. 147456
  11. 799236
  12. 1466521
  13. 73441
  14. 345744
  15. 143641
  16. 599076
  17. 4368100
  18. 81225
  19. 739600
  20. 32761
  21. 25600
  22. 42510400
  23. 57320041
  24. 25281
  25. 27489049
  26. 398161
  27. 436921
  28. 75076
  29. 24964
  30. 675684
  31. 505521
  32. 289444
  33. 36857041
  34. 220900
  35. 16040025
  36. 56325025
  37. 74407876
  38. 5303809
  39. 279841
  40. 537289

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