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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 757 · 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. 1.543² =
  2. 2.166² =
  3. 3.416² =
  4. 4.633² =
  5. 5.300² =
  6. 6.8032² =
  7. 7.503² =
  8. 8.748² =
  9. 9.8971² =
  10. 10.664² =
  11. 11.593² =
  12. 12.699² =
  13. 13.9486² =
  14. 14.922² =
  15. 15.489² =
  16. 16.625² =
  17. 17.340² =
  18. 18.248² =
  19. 19.912² =
  20. 20.363² =
  21. 21.3498² =
  22. 22.250² =
  23. 23.420² =
  24. 24.746² =
  25. 25.112² =
  26. 26.814² =
  27. 27.159² =
  28. 28.429² =
  29. 29.240² =
  30. 30.343² =
  31. 31.655² =
  32. 32.1378² =
  33. 33.754² =
  34. 34.360² =
  35. 35.500² =
  36. 36.8775² =
  37. 37.694² =
  38. 38.725² =
  39. 39.370² =
  40. 40.253² =

Answer key

  1. 294849
  2. 27556
  3. 173056
  4. 400689
  5. 90000
  6. 64513024
  7. 253009
  8. 559504
  9. 80478841
  10. 440896
  11. 351649
  12. 488601
  13. 89984196
  14. 850084
  15. 239121
  16. 390625
  17. 115600
  18. 61504
  19. 831744
  20. 131769
  21. 12236004
  22. 62500
  23. 176400
  24. 556516
  25. 12544
  26. 662596
  27. 25281
  28. 184041
  29. 57600
  30. 117649
  31. 429025
  32. 1898884
  33. 568516
  34. 129600
  35. 250000
  36. 77000625
  37. 481636
  38. 525625
  39. 136900
  40. 64009

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