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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 341 · 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. 1.206² =
  2. 2.7153² =
  3. 3.4754² =
  4. 4.527² =
  5. 5.4175² =
  6. 6.658² =
  7. 7.434² =
  8. 8.116² =
  9. 9.9786² =
  10. 10.405² =
  11. 11.4842² =
  12. 12.569² =
  13. 13.8276² =
  14. 14.905² =
  15. 15.731² =
  16. 16.3759² =
  17. 17.877² =
  18. 18.697² =
  19. 19.457² =
  20. 20.9275² =
  21. 21.508² =
  22. 22.737² =
  23. 23.857² =
  24. 24.2825² =
  25. 25.1889² =
  26. 26.104² =
  27. 27.626² =
  28. 28.606² =
  29. 29.127² =
  30. 30.851² =
  31. 31.267² =
  32. 32.202² =
  33. 33.185² =
  34. 34.1125² =
  35. 35.287² =
  36. 36.961² =
  37. 37.962² =
  38. 38.9698² =
  39. 39.470² =
  40. 40.867² =

Answer key

  1. 42436
  2. 51165409
  3. 22600516
  4. 277729
  5. 17430625
  6. 432964
  7. 188356
  8. 13456
  9. 95765796
  10. 164025
  11. 23444964
  12. 323761
  13. 68492176
  14. 819025
  15. 534361
  16. 14130081
  17. 769129
  18. 485809
  19. 208849
  20. 86025625
  21. 258064
  22. 543169
  23. 734449
  24. 7980625
  25. 3568321
  26. 10816
  27. 391876
  28. 367236
  29. 16129
  30. 724201
  31. 71289
  32. 40804
  33. 34225
  34. 1265625
  35. 82369
  36. 923521
  37. 925444
  38. 94051204
  39. 220900
  40. 751689

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