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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 173 · 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. 1.179² =
  2. 2.4230² =
  3. 3.426² =
  4. 4.384² =
  5. 5.258² =
  6. 6.676² =
  7. 7.162² =
  8. 8.128² =
  9. 9.434² =
  10. 10.145² =
  11. 11.917² =
  12. 12.609² =
  13. 13.719² =
  14. 14.666² =
  15. 15.623² =
  16. 16.637² =
  17. 17.175² =
  18. 18.6243² =
  19. 19.1477² =
  20. 20.366² =
  21. 21.794² =
  22. 22.709² =
  23. 23.133² =
  24. 24.340² =
  25. 25.327² =
  26. 26.3015² =
  27. 27.550² =
  28. 28.897² =
  29. 29.129² =
  30. 30.693² =
  31. 31.3678² =
  32. 32.749² =
  33. 33.7000² =
  34. 34.378² =
  35. 35.539² =
  36. 36.410² =
  37. 37.121² =
  38. 38.566² =
  39. 39.574² =
  40. 40.109² =

Answer key

  1. 32041
  2. 17892900
  3. 181476
  4. 147456
  5. 66564
  6. 456976
  7. 26244
  8. 16384
  9. 188356
  10. 21025
  11. 840889
  12. 370881
  13. 516961
  14. 443556
  15. 388129
  16. 405769
  17. 30625
  18. 38975049
  19. 2181529
  20. 133956
  21. 630436
  22. 502681
  23. 17689
  24. 115600
  25. 106929
  26. 9090225
  27. 302500
  28. 804609
  29. 16641
  30. 480249
  31. 13527684
  32. 561001
  33. 49000000
  34. 142884
  35. 290521
  36. 168100
  37. 14641
  38. 320356
  39. 329476
  40. 11881

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