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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 422 · 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. 1.850² =
  2. 2.405² =
  3. 3.617² =
  4. 4.912² =
  5. 5.6320² =
  6. 6.134² =
  7. 7.6837² =
  8. 8.610² =
  9. 9.7579² =
  10. 10.231² =
  11. 11.368² =
  12. 12.975² =
  13. 13.502² =
  14. 14.420² =
  15. 15.547² =
  16. 16.633² =
  17. 17.156² =
  18. 18.7370² =
  19. 19.496² =
  20. 20.5994² =
  21. 21.530² =
  22. 22.1402² =
  23. 23.484² =
  24. 24.966² =
  25. 25.862² =
  26. 26.525² =
  27. 27.814² =
  28. 28.688² =
  29. 29.136² =
  30. 30.5291² =
  31. 31.418² =
  32. 32.5779² =
  33. 33.346² =
  34. 34.932² =
  35. 35.588² =
  36. 36.903² =
  37. 37.2185² =
  38. 38.891² =
  39. 39.1482² =
  40. 40.521² =

Answer key

  1. 722500
  2. 164025
  3. 380689
  4. 831744
  5. 39942400
  6. 17956
  7. 46744569
  8. 372100
  9. 57441241
  10. 53361
  11. 135424
  12. 950625
  13. 252004
  14. 176400
  15. 299209
  16. 400689
  17. 24336
  18. 54316900
  19. 246016
  20. 35928036
  21. 280900
  22. 1965604
  23. 234256
  24. 933156
  25. 743044
  26. 275625
  27. 662596
  28. 473344
  29. 18496
  30. 27994681
  31. 174724
  32. 33396841
  33. 119716
  34. 868624
  35. 345744
  36. 815409
  37. 4774225
  38. 793881
  39. 2196324
  40. 271441

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