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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 477 · 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. 1.601² =
  2. 2.316² =
  3. 3.8351² =
  4. 4.560² =
  5. 5.356² =
  6. 6.539² =
  7. 7.622² =
  8. 8.5353² =
  9. 9.846² =
  10. 10.127² =
  11. 11.5329² =
  12. 12.9853² =
  13. 13.209² =
  14. 14.527² =
  15. 15.607² =
  16. 16.5709² =
  17. 17.5444² =
  18. 18.762² =
  19. 19.1629² =
  20. 20.249² =
  21. 21.6486² =
  22. 22.756² =
  23. 23.365² =
  24. 24.626² =
  25. 25.668² =
  26. 26.334² =
  27. 27.463² =
  28. 28.181² =
  29. 29.768² =
  30. 30.231² =
  31. 31.173² =
  32. 32.5683² =
  33. 33.7321² =
  34. 34.476² =
  35. 35.5095² =
  36. 36.386² =
  37. 37.7629² =
  38. 38.210² =
  39. 39.454² =
  40. 40.551² =

Answer key

  1. 361201
  2. 99856
  3. 69739201
  4. 313600
  5. 126736
  6. 290521
  7. 386884
  8. 28654609
  9. 715716
  10. 16129
  11. 28398241
  12. 97081609
  13. 43681
  14. 277729
  15. 368449
  16. 32592681
  17. 29637136
  18. 580644
  19. 2653641
  20. 62001
  21. 42068196
  22. 571536
  23. 133225
  24. 391876
  25. 446224
  26. 111556
  27. 214369
  28. 32761
  29. 589824
  30. 53361
  31. 29929
  32. 32296489
  33. 53597041
  34. 226576
  35. 25959025
  36. 148996
  37. 58201641
  38. 44100
  39. 206116
  40. 303601

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