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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 377 · 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. 1.7554² =
  2. 2.3322² =
  3. 3.517² =
  4. 4.313² =
  5. 5.689² =
  6. 6.398² =
  7. 7.506² =
  8. 8.764² =
  9. 9.5899² =
  10. 10.9667² =
  11. 11.3984² =
  12. 12.169² =
  13. 13.3416² =
  14. 14.195² =
  15. 15.699² =
  16. 16.300² =
  17. 17.1688² =
  18. 18.148² =
  19. 19.8355² =
  20. 20.104² =
  21. 21.2070² =
  22. 22.788² =
  23. 23.528² =
  24. 24.1525² =
  25. 25.926² =
  26. 26.320² =
  27. 27.854² =
  28. 28.4474² =
  29. 29.665² =
  30. 30.533² =
  31. 31.429² =
  32. 32.2163² =
  33. 33.900² =
  34. 34.2489² =
  35. 35.926² =
  36. 36.152² =
  37. 37.709² =
  38. 38.6646² =
  39. 39.808² =
  40. 40.301² =

Answer key

  1. 57062916
  2. 11035684
  3. 267289
  4. 97969
  5. 474721
  6. 158404
  7. 256036
  8. 583696
  9. 34798201
  10. 93450889
  11. 15872256
  12. 28561
  13. 11669056
  14. 38025
  15. 488601
  16. 90000
  17. 2849344
  18. 21904
  19. 69806025
  20. 10816
  21. 4284900
  22. 620944
  23. 278784
  24. 2325625
  25. 857476
  26. 102400
  27. 729316
  28. 20016676
  29. 442225
  30. 284089
  31. 184041
  32. 4678569
  33. 810000
  34. 6195121
  35. 857476
  36. 23104
  37. 502681
  38. 44169316
  39. 652864
  40. 90601

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