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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 234 · 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. 1.9082² =
  2. 2.2027² =
  3. 3.4667² =
  4. 4.292² =
  5. 5.1984² =
  6. 6.8442² =
  7. 7.555² =
  8. 8.3429² =
  9. 9.5377² =
  10. 10.170² =
  11. 11.524² =
  12. 12.5575² =
  13. 13.323² =
  14. 14.752² =
  15. 15.9860² =
  16. 16.721² =
  17. 17.966² =
  18. 18.6433² =
  19. 19.6152² =
  20. 20.840² =
  21. 21.681² =
  22. 22.365² =
  23. 23.194² =
  24. 24.712² =
  25. 25.439² =
  26. 26.771² =
  27. 27.300² =
  28. 28.350² =
  29. 29.847² =
  30. 30.328² =
  31. 31.757² =
  32. 32.751² =
  33. 33.480² =
  34. 34.857² =
  35. 35.2045² =
  36. 36.960² =
  37. 37.315² =
  38. 38.1269² =
  39. 39.895² =
  40. 40.189² =

Answer key

  1. 82482724
  2. 4108729
  3. 21780889
  4. 85264
  5. 3936256
  6. 71267364
  7. 308025
  8. 11758041
  9. 28912129
  10. 28900
  11. 274576
  12. 31080625
  13. 104329
  14. 565504
  15. 97219600
  16. 519841
  17. 933156
  18. 41383489
  19. 37847104
  20. 705600
  21. 463761
  22. 133225
  23. 37636
  24. 506944
  25. 192721
  26. 594441
  27. 90000
  28. 122500
  29. 717409
  30. 107584
  31. 573049
  32. 564001
  33. 230400
  34. 734449
  35. 4182025
  36. 921600
  37. 99225
  38. 1610361
  39. 801025
  40. 35721

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