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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 518 · 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. 1.110² =
  2. 2.3034² =
  3. 3.4935² =
  4. 4.5027² =
  5. 5.3168² =
  6. 6.185² =
  7. 7.8894² =
  8. 8.532² =
  9. 9.676² =
  10. 10.769² =
  11. 11.3683² =
  12. 12.160² =
  13. 13.789² =
  14. 14.892² =
  15. 15.6615² =
  16. 16.737² =
  17. 17.3157² =
  18. 18.421² =
  19. 19.871² =
  20. 20.1890² =
  21. 21.853² =
  22. 22.596² =
  23. 23.8427² =
  24. 24.115² =
  25. 25.631² =
  26. 26.140² =
  27. 27.481² =
  28. 28.203² =
  29. 29.887² =
  30. 30.300² =
  31. 31.7031² =
  32. 32.2051² =
  33. 33.705² =
  34. 34.232² =
  35. 35.599² =
  36. 36.250² =
  37. 37.5261² =
  38. 38.659² =
  39. 39.9041² =
  40. 40.184² =

Answer key

  1. 12100
  2. 9205156
  3. 24354225
  4. 25270729
  5. 10036224
  6. 34225
  7. 79103236
  8. 283024
  9. 456976
  10. 591361
  11. 13564489
  12. 25600
  13. 622521
  14. 795664
  15. 43758225
  16. 543169
  17. 9966649
  18. 177241
  19. 758641
  20. 3572100
  21. 727609
  22. 355216
  23. 71014329
  24. 13225
  25. 398161
  26. 19600
  27. 231361
  28. 41209
  29. 786769
  30. 90000
  31. 49434961
  32. 4206601
  33. 497025
  34. 53824
  35. 358801
  36. 62500
  37. 27678121
  38. 434281
  39. 81739681
  40. 33856

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