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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 86 · 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. 1.300² =
  2. 2.9714² =
  3. 3.418² =
  4. 4.1761² =
  5. 5.787² =
  6. 6.740² =
  7. 7.304² =
  8. 8.288² =
  9. 9.273² =
  10. 10.972² =
  11. 11.6830² =
  12. 12.5955² =
  13. 13.103² =
  14. 14.8894² =
  15. 15.522² =
  16. 16.192² =
  17. 17.5236² =
  18. 18.330² =
  19. 19.848² =
  20. 20.9997² =
  21. 21.6536² =
  22. 22.6420² =
  23. 23.8989² =
  24. 24.117² =
  25. 25.7333² =
  26. 26.929² =
  27. 27.736² =
  28. 28.626² =
  29. 29.895² =
  30. 30.5192² =
  31. 31.539² =
  32. 32.259² =
  33. 33.5673² =
  34. 34.5708² =
  35. 35.4495² =
  36. 36.898² =
  37. 37.9817² =
  38. 38.4116² =
  39. 39.236² =
  40. 40.2944² =

Answer key

  1. 90000
  2. 94361796
  3. 174724
  4. 3101121
  5. 619369
  6. 547600
  7. 92416
  8. 82944
  9. 74529
  10. 944784
  11. 46648900
  12. 35462025
  13. 10609
  14. 79103236
  15. 272484
  16. 36864
  17. 27415696
  18. 108900
  19. 719104
  20. 99940009
  21. 42719296
  22. 41216400
  23. 80802121
  24. 13689
  25. 53772889
  26. 863041
  27. 541696
  28. 391876
  29. 801025
  30. 26956864
  31. 290521
  32. 67081
  33. 32182929
  34. 32581264
  35. 20205025
  36. 806404
  37. 96373489
  38. 16941456
  39. 55696
  40. 8667136

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