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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 565 · 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. 1.8868² =
  2. 2.969² =
  3. 3.8799² =
  4. 4.357² =
  5. 5.6228² =
  6. 6.879² =
  7. 7.7535² =
  8. 8.187² =
  9. 9.305² =
  10. 10.4474² =
  11. 11.150² =
  12. 12.217² =
  13. 13.746² =
  14. 14.6069² =
  15. 15.1312² =
  16. 16.1997² =
  17. 17.312² =
  18. 18.292² =
  19. 19.122² =
  20. 20.253² =
  21. 21.9783² =
  22. 22.563² =
  23. 23.849² =
  24. 24.234² =
  25. 25.855² =
  26. 26.1211² =
  27. 27.6454² =
  28. 28.817² =
  29. 29.841² =
  30. 30.722² =
  31. 31.384² =
  32. 32.691² =
  33. 33.288² =
  34. 34.4581² =
  35. 35.8850² =
  36. 36.3538² =
  37. 37.1952² =
  38. 38.238² =
  39. 39.518² =
  40. 40.821² =

Answer key

  1. 78641424
  2. 938961
  3. 77422401
  4. 127449
  5. 38787984
  6. 772641
  7. 56776225
  8. 34969
  9. 93025
  10. 20016676
  11. 22500
  12. 47089
  13. 556516
  14. 36832761
  15. 1721344
  16. 3988009
  17. 97344
  18. 85264
  19. 14884
  20. 64009
  21. 95707089
  22. 316969
  23. 720801
  24. 54756
  25. 731025
  26. 1466521
  27. 41654116
  28. 667489
  29. 707281
  30. 521284
  31. 147456
  32. 477481
  33. 82944
  34. 20985561
  35. 78322500
  36. 12517444
  37. 3810304
  38. 56644
  39. 268324
  40. 674041

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