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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 277 · 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. 1.954² =
  2. 2.673² =
  3. 3.468² =
  4. 4.942² =
  5. 5.500² =
  6. 6.314² =
  7. 7.3680² =
  8. 8.918² =
  9. 9.269² =
  10. 10.681² =
  11. 11.917² =
  12. 12.419² =
  13. 13.504² =
  14. 14.329² =
  15. 15.659² =
  16. 16.998² =
  17. 17.8661² =
  18. 18.416² =
  19. 19.331² =
  20. 20.9581² =
  21. 21.275² =
  22. 22.284² =
  23. 23.195² =
  24. 24.4767² =
  25. 25.5321² =
  26. 26.3846² =
  27. 27.770² =
  28. 28.724² =
  29. 29.9631² =
  30. 30.323² =
  31. 31.1756² =
  32. 32.7992² =
  33. 33.791² =
  34. 34.2852² =
  35. 35.6818² =
  36. 36.881² =
  37. 37.5840² =
  38. 38.838² =
  39. 39.2125² =
  40. 40.912² =

Answer key

  1. 910116
  2. 452929
  3. 219024
  4. 887364
  5. 250000
  6. 98596
  7. 13542400
  8. 842724
  9. 72361
  10. 463761
  11. 840889
  12. 175561
  13. 254016
  14. 108241
  15. 434281
  16. 996004
  17. 75012921
  18. 173056
  19. 109561
  20. 91795561
  21. 75625
  22. 80656
  23. 38025
  24. 22724289
  25. 28313041
  26. 14791716
  27. 592900
  28. 524176
  29. 92756161
  30. 104329
  31. 3083536
  32. 63872064
  33. 625681
  34. 8133904
  35. 46485124
  36. 776161
  37. 34105600
  38. 702244
  39. 4515625
  40. 831744

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