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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 279 · 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. 1.117² =
  2. 2.285² =
  3. 3.958² =
  4. 4.103² =
  5. 5.5582² =
  6. 6.585² =
  7. 7.150² =
  8. 8.928² =
  9. 9.656² =
  10. 10.979² =
  11. 11.937² =
  12. 12.737² =
  13. 13.844² =
  14. 14.937² =
  15. 15.983² =
  16. 16.909² =
  17. 17.901² =
  18. 18.607² =
  19. 19.432² =
  20. 20.8695² =
  21. 21.593² =
  22. 22.404² =
  23. 23.470² =
  24. 24.4409² =
  25. 25.1420² =
  26. 26.9268² =
  27. 27.146² =
  28. 28.638² =
  29. 29.869² =
  30. 30.254² =
  31. 31.362² =
  32. 32.675² =
  33. 33.2351² =
  34. 34.111² =
  35. 35.5964² =
  36. 36.361² =
  37. 37.685² =
  38. 38.3871² =
  39. 39.5652² =
  40. 40.173² =

Answer key

  1. 13689
  2. 81225
  3. 917764
  4. 10609
  5. 31158724
  6. 342225
  7. 22500
  8. 861184
  9. 430336
  10. 958441
  11. 877969
  12. 543169
  13. 712336
  14. 877969
  15. 966289
  16. 826281
  17. 811801
  18. 368449
  19. 186624
  20. 75603025
  21. 351649
  22. 163216
  23. 220900
  24. 19439281
  25. 2016400
  26. 85895824
  27. 21316
  28. 407044
  29. 755161
  30. 64516
  31. 131044
  32. 455625
  33. 5527201
  34. 12321
  35. 35569296
  36. 130321
  37. 469225
  38. 14984641
  39. 31945104
  40. 29929

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