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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 624 · 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. 1.761² =
  2. 2.9681² =
  3. 3.218² =
  4. 4.107² =
  5. 5.428² =
  6. 6.221² =
  7. 7.182² =
  8. 8.601² =
  9. 9.191² =
  10. 10.696² =
  11. 11.812² =
  12. 12.172² =
  13. 13.6759² =
  14. 14.7158² =
  15. 15.332² =
  16. 16.632² =
  17. 17.640² =
  18. 18.969² =
  19. 19.240² =
  20. 20.937² =
  21. 21.498² =
  22. 22.9212² =
  23. 23.169² =
  24. 24.861² =
  25. 25.279² =
  26. 26.149² =
  27. 27.259² =
  28. 28.3496² =
  29. 29.2089² =
  30. 30.974² =
  31. 31.660² =
  32. 32.647² =
  33. 33.148² =
  34. 34.894² =
  35. 35.8660² =
  36. 36.958² =
  37. 37.451² =
  38. 38.736² =
  39. 39.282² =
  40. 40.359² =

Answer key

  1. 579121
  2. 93721761
  3. 47524
  4. 11449
  5. 183184
  6. 48841
  7. 33124
  8. 361201
  9. 36481
  10. 484416
  11. 659344
  12. 29584
  13. 45684081
  14. 51236964
  15. 110224
  16. 399424
  17. 409600
  18. 938961
  19. 57600
  20. 877969
  21. 248004
  22. 84860944
  23. 28561
  24. 741321
  25. 77841
  26. 22201
  27. 67081
  28. 12222016
  29. 4363921
  30. 948676
  31. 435600
  32. 418609
  33. 21904
  34. 799236
  35. 74995600
  36. 917764
  37. 203401
  38. 541696
  39. 79524
  40. 128881

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