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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 76 · 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. 1.820² =
  2. 2.332² =
  3. 3.5693² =
  4. 4.749² =
  5. 5.807² =
  6. 6.556² =
  7. 7.958² =
  8. 8.605² =
  9. 9.5686² =
  10. 10.544² =
  11. 11.595² =
  12. 12.441² =
  13. 13.716² =
  14. 14.116² =
  15. 15.984² =
  16. 16.148² =
  17. 17.642² =
  18. 18.9271² =
  19. 19.7637² =
  20. 20.314² =
  21. 21.405² =
  22. 22.926² =
  23. 23.8104² =
  24. 24.420² =
  25. 25.8336² =
  26. 26.254² =
  27. 27.198² =
  28. 28.137² =
  29. 29.839² =
  30. 30.128² =
  31. 31.253² =
  32. 32.6614² =
  33. 33.182² =
  34. 34.256² =
  35. 35.416² =
  36. 36.8636² =
  37. 37.856² =
  38. 38.253² =
  39. 39.781² =
  40. 40.7163² =

Answer key

  1. 672400
  2. 110224
  3. 32410249
  4. 561001
  5. 651249
  6. 309136
  7. 917764
  8. 366025
  9. 32330596
  10. 295936
  11. 354025
  12. 194481
  13. 512656
  14. 13456
  15. 968256
  16. 21904
  17. 412164
  18. 85951441
  19. 58323769
  20. 98596
  21. 164025
  22. 857476
  23. 65674816
  24. 176400
  25. 69488896
  26. 64516
  27. 39204
  28. 18769
  29. 703921
  30. 16384
  31. 64009
  32. 43744996
  33. 33124
  34. 65536
  35. 173056
  36. 74580496
  37. 732736
  38. 64009
  39. 609961
  40. 51308569

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