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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 5 · 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. 1.177² =
  2. 2.9269² =
  3. 3.860² =
  4. 4.747² =
  5. 5.226² =
  6. 6.146² =
  7. 7.8786² =
  8. 8.332² =
  9. 9.917² =
  10. 10.889² =
  11. 11.295² =
  12. 12.445² =
  13. 13.149² =
  14. 14.812² =
  15. 15.401² =
  16. 16.674² =
  17. 17.107² =
  18. 18.780² =
  19. 19.793² =
  20. 20.4774² =
  21. 21.917² =
  22. 22.420² =
  23. 23.267² =
  24. 24.4830² =
  25. 25.812² =
  26. 26.718² =
  27. 27.386² =
  28. 28.200² =
  29. 29.2851² =
  30. 30.462² =
  31. 31.721² =
  32. 32.4556² =
  33. 33.355² =
  34. 34.644² =
  35. 35.8128² =
  36. 36.183² =
  37. 37.961² =
  38. 38.693² =
  39. 39.183² =
  40. 40.9877² =

Answer key

  1. 31329
  2. 85914361
  3. 739600
  4. 558009
  5. 51076
  6. 21316
  7. 77193796
  8. 110224
  9. 840889
  10. 790321
  11. 87025
  12. 198025
  13. 22201
  14. 659344
  15. 160801
  16. 454276
  17. 11449
  18. 608400
  19. 628849
  20. 22791076
  21. 840889
  22. 176400
  23. 71289
  24. 23328900
  25. 659344
  26. 515524
  27. 148996
  28. 40000
  29. 8128201
  30. 213444
  31. 519841
  32. 20757136
  33. 126025
  34. 414736
  35. 66064384
  36. 33489
  37. 923521
  38. 480249
  39. 33489
  40. 97555129

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