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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 732 · 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. 1.543² =
  2. 2.9765² =
  3. 3.3715² =
  4. 4.236² =
  5. 5.656² =
  6. 6.1327² =
  7. 7.606² =
  8. 8.784² =
  9. 9.428² =
  10. 10.291² =
  11. 11.372² =
  12. 12.356² =
  13. 13.3739² =
  14. 14.589² =
  15. 15.889² =
  16. 16.351² =
  17. 17.688² =
  18. 18.159² =
  19. 19.6578² =
  20. 20.6409² =
  21. 21.404² =
  22. 22.746² =
  23. 23.6641² =
  24. 24.2078² =
  25. 25.892² =
  26. 26.920² =
  27. 27.9716² =
  28. 28.648² =
  29. 29.274² =
  30. 30.886² =
  31. 31.762² =
  32. 32.333² =
  33. 33.984² =
  34. 34.7535² =
  35. 35.6447² =
  36. 36.415² =
  37. 37.2070² =
  38. 38.721² =
  39. 39.389² =
  40. 40.312² =

Answer key

  1. 294849
  2. 95355225
  3. 13801225
  4. 55696
  5. 430336
  6. 1760929
  7. 367236
  8. 614656
  9. 183184
  10. 84681
  11. 138384
  12. 126736
  13. 13980121
  14. 346921
  15. 790321
  16. 123201
  17. 473344
  18. 25281
  19. 43270084
  20. 41075281
  21. 163216
  22. 556516
  23. 44102881
  24. 4318084
  25. 795664
  26. 846400
  27. 94400656
  28. 419904
  29. 75076
  30. 784996
  31. 580644
  32. 110889
  33. 968256
  34. 56776225
  35. 41563809
  36. 172225
  37. 4284900
  38. 519841
  39. 151321
  40. 97344

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