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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 977 · 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. 1.3521² =
  2. 2.3768² =
  3. 3.507² =
  4. 4.1234² =
  5. 5.3568² =
  6. 6.785² =
  7. 7.732² =
  8. 8.194² =
  9. 9.633² =
  10. 10.137² =
  11. 11.399² =
  12. 12.731² =
  13. 13.367² =
  14. 14.1993² =
  15. 15.693² =
  16. 16.3707² =
  17. 17.9733² =
  18. 18.3457² =
  19. 19.694² =
  20. 20.6609² =
  21. 21.978² =
  22. 22.496² =
  23. 23.6024² =
  24. 24.806² =
  25. 25.110² =
  26. 26.591² =
  27. 27.2916² =
  28. 28.387² =
  29. 29.594² =
  30. 30.466² =
  31. 31.8358² =
  32. 32.940² =
  33. 33.157² =
  34. 34.998² =
  35. 35.265² =
  36. 36.943² =
  37. 37.412² =
  38. 38.6373² =
  39. 39.950² =
  40. 40.936² =

Answer key

  1. 12397441
  2. 14197824
  3. 257049
  4. 1522756
  5. 12730624
  6. 616225
  7. 535824
  8. 37636
  9. 400689
  10. 18769
  11. 159201
  12. 534361
  13. 134689
  14. 3972049
  15. 480249
  16. 13741849
  17. 94731289
  18. 11950849
  19. 481636
  20. 43678881
  21. 956484
  22. 246016
  23. 36288576
  24. 649636
  25. 12100
  26. 349281
  27. 8503056
  28. 149769
  29. 352836
  30. 217156
  31. 69856164
  32. 883600
  33. 24649
  34. 996004
  35. 70225
  36. 889249
  37. 169744
  38. 40615129
  39. 902500
  40. 876096

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