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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 348 · 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. 1.963² =
  2. 2.844² =
  3. 3.995² =
  4. 4.345² =
  5. 5.977² =
  6. 6.719² =
  7. 7.871² =
  8. 8.377² =
  9. 9.514² =
  10. 10.905² =
  11. 11.709² =
  12. 12.906² =
  13. 13.9354² =
  14. 14.7308² =
  15. 15.653² =
  16. 16.9247² =
  17. 17.891² =
  18. 18.831² =
  19. 19.353² =
  20. 20.906² =
  21. 21.8208² =
  22. 22.842² =
  23. 23.943² =
  24. 24.758² =
  25. 25.657² =
  26. 26.682² =
  27. 27.343² =
  28. 28.452² =
  29. 29.664² =
  30. 30.102² =
  31. 31.6492² =
  32. 32.493² =
  33. 33.4972² =
  34. 34.8775² =
  35. 35.954² =
  36. 36.4224² =
  37. 37.1067² =
  38. 38.8053² =
  39. 39.682² =
  40. 40.479² =

Answer key

  1. 927369
  2. 712336
  3. 990025
  4. 119025
  5. 954529
  6. 516961
  7. 758641
  8. 142129
  9. 264196
  10. 819025
  11. 502681
  12. 820836
  13. 87497316
  14. 53406864
  15. 426409
  16. 85507009
  17. 793881
  18. 690561
  19. 124609
  20. 820836
  21. 67371264
  22. 708964
  23. 889249
  24. 574564
  25. 431649
  26. 465124
  27. 117649
  28. 204304
  29. 440896
  30. 10404
  31. 42146064
  32. 243049
  33. 24720784
  34. 77000625
  35. 910116
  36. 17842176
  37. 1138489
  38. 64850809
  39. 465124
  40. 229441

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