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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 762 · 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. 1.2429² =
  2. 2.5127² =
  3. 3.211² =
  4. 4.316² =
  5. 5.471² =
  6. 6.440² =
  7. 7.281² =
  8. 8.8890² =
  9. 9.7448² =
  10. 10.335² =
  11. 11.131² =
  12. 12.205² =
  13. 13.404² =
  14. 14.163² =
  15. 15.271² =
  16. 16.925² =
  17. 17.437² =
  18. 18.226² =
  19. 19.407² =
  20. 20.477² =
  21. 21.654² =
  22. 22.1679² =
  23. 23.384² =
  24. 24.2974² =
  25. 25.136² =
  26. 26.613² =
  27. 27.663² =
  28. 28.5894² =
  29. 29.4579² =
  30. 30.3171² =
  31. 31.1796² =
  32. 32.9583² =
  33. 33.321² =
  34. 34.101² =
  35. 35.680² =
  36. 36.641² =
  37. 37.824² =
  38. 38.224² =
  39. 39.756² =
  40. 40.138² =

Answer key

  1. 5900041
  2. 26286129
  3. 44521
  4. 99856
  5. 221841
  6. 193600
  7. 78961
  8. 79032100
  9. 55472704
  10. 112225
  11. 17161
  12. 42025
  13. 163216
  14. 26569
  15. 73441
  16. 855625
  17. 190969
  18. 51076
  19. 165649
  20. 227529
  21. 427716
  22. 2819041
  23. 147456
  24. 8844676
  25. 18496
  26. 375769
  27. 439569
  28. 34739236
  29. 20967241
  30. 10055241
  31. 3225616
  32. 91833889
  33. 103041
  34. 10201
  35. 462400
  36. 410881
  37. 678976
  38. 50176
  39. 571536
  40. 19044

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