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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 879 · 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. 1.2112² =
  2. 2.4969² =
  3. 3.949² =
  4. 4.5562² =
  5. 5.187² =
  6. 6.741² =
  7. 7.3243² =
  8. 8.880² =
  9. 9.119² =
  10. 10.511² =
  11. 11.9770² =
  12. 12.388² =
  13. 13.265² =
  14. 14.459² =
  15. 15.489² =
  16. 16.5238² =
  17. 17.157² =
  18. 18.3939² =
  19. 19.6578² =
  20. 20.490² =
  21. 21.263² =
  22. 22.680² =
  23. 23.747² =
  24. 24.2490² =
  25. 25.1204² =
  26. 26.444² =
  27. 27.5496² =
  28. 28.541² =
  29. 29.8650² =
  30. 30.469² =
  31. 31.3843² =
  32. 32.437² =
  33. 33.550² =
  34. 34.577² =
  35. 35.5151² =
  36. 36.285² =
  37. 37.364² =
  38. 38.794² =
  39. 39.212² =
  40. 40.5610² =

Answer key

  1. 4460544
  2. 24690961
  3. 900601
  4. 30935844
  5. 34969
  6. 549081
  7. 10517049
  8. 774400
  9. 14161
  10. 261121
  11. 95452900
  12. 150544
  13. 70225
  14. 210681
  15. 239121
  16. 27436644
  17. 24649
  18. 15515721
  19. 43270084
  20. 240100
  21. 69169
  22. 462400
  23. 558009
  24. 6200100
  25. 1449616
  26. 197136
  27. 30206016
  28. 292681
  29. 74822500
  30. 219961
  31. 14768649
  32. 190969
  33. 302500
  34. 332929
  35. 26532801
  36. 81225
  37. 132496
  38. 630436
  39. 44944
  40. 31472100

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