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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 350 · 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. 1.3396² =
  2. 2.2333² =
  3. 3.888² =
  4. 4.5868² =
  5. 5.187² =
  6. 6.4442² =
  7. 7.482² =
  8. 8.475² =
  9. 9.7617² =
  10. 10.356² =
  11. 11.401² =
  12. 12.121² =
  13. 13.4522² =
  14. 14.340² =
  15. 15.340² =
  16. 16.4207² =
  17. 17.542² =
  18. 18.311² =
  19. 19.5257² =
  20. 20.711² =
  21. 21.822² =
  22. 22.6698² =
  23. 23.197² =
  24. 24.727² =
  25. 25.132² =
  26. 26.356² =
  27. 27.176² =
  28. 28.171² =
  29. 29.252² =
  30. 30.1344² =
  31. 31.885² =
  32. 32.1741² =
  33. 33.8299² =
  34. 34.3242² =
  35. 35.2370² =
  36. 36.194² =
  37. 37.226² =
  38. 38.513² =
  39. 39.272² =
  40. 40.773² =

Answer key

  1. 11532816
  2. 5442889
  3. 788544
  4. 34433424
  5. 34969
  6. 19731364
  7. 232324
  8. 225625
  9. 58018689
  10. 126736
  11. 160801
  12. 14641
  13. 20448484
  14. 115600
  15. 115600
  16. 17698849
  17. 293764
  18. 96721
  19. 27636049
  20. 505521
  21. 675684
  22. 44863204
  23. 38809
  24. 528529
  25. 17424
  26. 126736
  27. 30976
  28. 29241
  29. 63504
  30. 1806336
  31. 783225
  32. 3031081
  33. 68873401
  34. 10510564
  35. 5616900
  36. 37636
  37. 51076
  38. 263169
  39. 73984
  40. 597529

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