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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 601 · 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. 1.193² =
  2. 2.877² =
  3. 3.980² =
  4. 4.4837² =
  5. 5.109² =
  6. 6.2931² =
  7. 7.1338² =
  8. 8.219² =
  9. 9.635² =
  10. 10.859² =
  11. 11.184² =
  12. 12.169² =
  13. 13.779² =
  14. 14.439² =
  15. 15.360² =
  16. 16.5113² =
  17. 17.8933² =
  18. 18.674² =
  19. 19.892² =
  20. 20.755² =
  21. 21.206² =
  22. 22.1743² =
  23. 23.4051² =
  24. 24.556² =
  25. 25.544² =
  26. 26.848² =
  27. 27.209² =
  28. 28.325² =
  29. 29.9820² =
  30. 30.278² =
  31. 31.6799² =
  32. 32.963² =
  33. 33.303² =
  34. 34.886² =
  35. 35.628² =
  36. 36.488² =
  37. 37.570² =
  38. 38.930² =
  39. 39.983² =
  40. 40.296² =

Answer key

  1. 37249
  2. 769129
  3. 960400
  4. 23396569
  5. 11881
  6. 8590761
  7. 1790244
  8. 47961
  9. 403225
  10. 737881
  11. 33856
  12. 28561
  13. 606841
  14. 192721
  15. 129600
  16. 26142769
  17. 79798489
  18. 454276
  19. 795664
  20. 570025
  21. 42436
  22. 3038049
  23. 16410601
  24. 309136
  25. 295936
  26. 719104
  27. 43681
  28. 105625
  29. 96432400
  30. 77284
  31. 46226401
  32. 927369
  33. 91809
  34. 784996
  35. 394384
  36. 238144
  37. 324900
  38. 864900
  39. 966289
  40. 87616

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