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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 553 · 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. 1.866² =
  2. 2.1825² =
  3. 3.6828² =
  4. 4.649² =
  5. 5.7789² =
  6. 6.287² =
  7. 7.299² =
  8. 8.4264² =
  9. 9.220² =
  10. 10.241² =
  11. 11.9162² =
  12. 12.112² =
  13. 13.3803² =
  14. 14.1219² =
  15. 15.3361² =
  16. 16.829² =
  17. 17.871² =
  18. 18.285² =
  19. 19.574² =
  20. 20.936² =
  21. 21.130² =
  22. 22.3655² =
  23. 23.6205² =
  24. 24.188² =
  25. 25.897² =
  26. 26.295² =
  27. 27.187² =
  28. 28.1572² =
  29. 29.3269² =
  30. 30.282² =
  31. 31.783² =
  32. 32.852² =
  33. 33.556² =
  34. 34.4793² =
  35. 35.569² =
  36. 36.961² =
  37. 37.532² =
  38. 38.821² =
  39. 39.724² =
  40. 40.7202² =

Answer key

  1. 749956
  2. 3330625
  3. 46621584
  4. 421201
  5. 60668521
  6. 82369
  7. 89401
  8. 18181696
  9. 48400
  10. 58081
  11. 83942244
  12. 12544
  13. 14462809
  14. 1485961
  15. 11296321
  16. 687241
  17. 758641
  18. 81225
  19. 329476
  20. 876096
  21. 16900
  22. 13359025
  23. 38502025
  24. 35344
  25. 804609
  26. 87025
  27. 34969
  28. 2471184
  29. 10686361
  30. 79524
  31. 613089
  32. 725904
  33. 309136
  34. 22972849
  35. 323761
  36. 923521
  37. 283024
  38. 674041
  39. 524176
  40. 51868804

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