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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 822 · 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. 1.591² =
  2. 2.669² =
  3. 3.774² =
  4. 4.641² =
  5. 5.518² =
  6. 6.318² =
  7. 7.988² =
  8. 8.407² =
  9. 9.688² =
  10. 10.362² =
  11. 11.705² =
  12. 12.9513² =
  13. 13.654² =
  14. 14.5665² =
  15. 15.2973² =
  16. 16.952² =
  17. 17.718² =
  18. 18.1295² =
  19. 19.859² =
  20. 20.228² =
  21. 21.7231² =
  22. 22.8205² =
  23. 23.426² =
  24. 24.216² =
  25. 25.5440² =
  26. 26.409² =
  27. 27.1249² =
  28. 28.271² =
  29. 29.985² =
  30. 30.992² =
  31. 31.127² =
  32. 32.637² =
  33. 33.4122² =
  34. 34.6602² =
  35. 35.468² =
  36. 36.6084² =
  37. 37.203² =
  38. 38.401² =
  39. 39.805² =
  40. 40.523² =

Answer key

  1. 349281
  2. 447561
  3. 599076
  4. 410881
  5. 268324
  6. 101124
  7. 976144
  8. 165649
  9. 473344
  10. 131044
  11. 497025
  12. 90497169
  13. 427716
  14. 32092225
  15. 8838729
  16. 906304
  17. 515524
  18. 1677025
  19. 737881
  20. 51984
  21. 52287361
  22. 67322025
  23. 181476
  24. 46656
  25. 29593600
  26. 167281
  27. 1560001
  28. 73441
  29. 970225
  30. 984064
  31. 16129
  32. 405769
  33. 16990884
  34. 43586404
  35. 219024
  36. 37015056
  37. 41209
  38. 160801
  39. 648025
  40. 273529

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