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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 40 · 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. 1.3375² =
  2. 2.3282² =
  3. 3.215² =
  4. 4.5462² =
  5. 5.6797² =
  6. 6.115² =
  7. 7.962² =
  8. 8.243² =
  9. 9.475² =
  10. 10.977² =
  11. 11.137² =
  12. 12.5167² =
  13. 13.637² =
  14. 14.813² =
  15. 15.297² =
  16. 16.6507² =
  17. 17.9749² =
  18. 18.365² =
  19. 19.373² =
  20. 20.2939² =
  21. 21.617² =
  22. 22.8045² =
  23. 23.648² =
  24. 24.2531² =
  25. 25.692² =
  26. 26.7036² =
  27. 27.829² =
  28. 28.451² =
  29. 29.343² =
  30. 30.833² =
  31. 31.628² =
  32. 32.5906² =
  33. 33.6878² =
  34. 34.138² =
  35. 35.167² =
  36. 36.866² =
  37. 37.461² =
  38. 38.1248² =
  39. 39.659² =
  40. 40.116² =

Answer key

  1. 11390625
  2. 10771524
  3. 46225
  4. 29833444
  5. 46199209
  6. 13225
  7. 925444
  8. 59049
  9. 225625
  10. 954529
  11. 18769
  12. 26697889
  13. 405769
  14. 660969
  15. 88209
  16. 42341049
  17. 95043001
  18. 133225
  19. 139129
  20. 8637721
  21. 380689
  22. 64722025
  23. 419904
  24. 6405961
  25. 478864
  26. 49505296
  27. 687241
  28. 203401
  29. 117649
  30. 693889
  31. 394384
  32. 34880836
  33. 47306884
  34. 19044
  35. 27889
  36. 749956
  37. 212521
  38. 1557504
  39. 434281
  40. 13456

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