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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 577 · 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. 1.665² =
  2. 2.578² =
  3. 3.689² =
  4. 4.738² =
  5. 5.7841² =
  6. 6.8207² =
  7. 7.7938² =
  8. 8.6530² =
  9. 9.8515² =
  10. 10.560² =
  11. 11.751² =
  12. 12.6101² =
  13. 13.4989² =
  14. 14.935² =
  15. 15.734² =
  16. 16.492² =
  17. 17.881² =
  18. 18.9595² =
  19. 19.603² =
  20. 20.668² =
  21. 21.5413² =
  22. 22.164² =
  23. 23.345² =
  24. 24.5660² =
  25. 25.111² =
  26. 26.877² =
  27. 27.3244² =
  28. 28.383² =
  29. 29.227² =
  30. 30.1535² =
  31. 31.240² =
  32. 32.8948² =
  33. 33.4068² =
  34. 34.809² =
  35. 35.262² =
  36. 36.4337² =
  37. 37.284² =
  38. 38.989² =
  39. 39.567² =
  40. 40.1431² =

Answer key

  1. 442225
  2. 334084
  3. 474721
  4. 544644
  5. 61481281
  6. 67354849
  7. 63011844
  8. 42640900
  9. 72505225
  10. 313600
  11. 564001
  12. 37222201
  13. 24890121
  14. 874225
  15. 538756
  16. 242064
  17. 776161
  18. 92064025
  19. 363609
  20. 446224
  21. 29300569
  22. 26896
  23. 119025
  24. 32035600
  25. 12321
  26. 769129
  27. 10523536
  28. 146689
  29. 51529
  30. 2356225
  31. 57600
  32. 80066704
  33. 16548624
  34. 654481
  35. 68644
  36. 18809569
  37. 80656
  38. 978121
  39. 321489
  40. 2047761

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