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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 317 · 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. 1.564² =
  2. 2.4454² =
  3. 3.2559² =
  4. 4.195² =
  5. 5.851² =
  6. 6.499² =
  7. 7.292² =
  8. 8.329² =
  9. 9.3882² =
  10. 10.632² =
  11. 11.4592² =
  12. 12.423² =
  13. 13.913² =
  14. 14.4814² =
  15. 15.7011² =
  16. 16.281² =
  17. 17.395² =
  18. 18.214² =
  19. 19.6675² =
  20. 20.2185² =
  21. 21.716² =
  22. 22.904² =
  23. 23.371² =
  24. 24.787² =
  25. 25.223² =
  26. 26.3140² =
  27. 27.434² =
  28. 28.4313² =
  29. 29.985² =
  30. 30.187² =
  31. 31.942² =
  32. 32.129² =
  33. 33.8111² =
  34. 34.274² =
  35. 35.483² =
  36. 36.5345² =
  37. 37.184² =
  38. 38.648² =
  39. 39.899² =
  40. 40.114² =

Answer key

  1. 318096
  2. 19838116
  3. 6548481
  4. 38025
  5. 724201
  6. 249001
  7. 85264
  8. 108241
  9. 15069924
  10. 399424
  11. 21086464
  12. 178929
  13. 833569
  14. 23174596
  15. 49154121
  16. 78961
  17. 156025
  18. 45796
  19. 44555625
  20. 4774225
  21. 512656
  22. 817216
  23. 137641
  24. 619369
  25. 49729
  26. 9859600
  27. 188356
  28. 18601969
  29. 970225
  30. 34969
  31. 887364
  32. 16641
  33. 65788321
  34. 75076
  35. 233289
  36. 28569025
  37. 33856
  38. 419904
  39. 808201
  40. 12996

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