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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 61 · 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. 1.1430² =
  2. 2.421² =
  3. 3.1299² =
  4. 4.796² =
  5. 5.2066² =
  6. 6.458² =
  7. 7.3598² =
  8. 8.334² =
  9. 9.6481² =
  10. 10.711² =
  11. 11.336² =
  12. 12.513² =
  13. 13.785² =
  14. 14.507² =
  15. 15.877² =
  16. 16.1049² =
  17. 17.237² =
  18. 18.143² =
  19. 19.247² =
  20. 20.2378² =
  21. 21.811² =
  22. 22.332² =
  23. 23.841² =
  24. 24.1560² =
  25. 25.929² =
  26. 26.245² =
  27. 27.2229² =
  28. 28.969² =
  29. 29.786² =
  30. 30.569² =
  31. 31.4127² =
  32. 32.8125² =
  33. 33.7248² =
  34. 34.7155² =
  35. 35.263² =
  36. 36.732² =
  37. 37.322² =
  38. 38.5402² =
  39. 39.226² =
  40. 40.736² =

Answer key

  1. 2044900
  2. 177241
  3. 1687401
  4. 633616
  5. 4268356
  6. 209764
  7. 12945604
  8. 111556
  9. 42003361
  10. 505521
  11. 112896
  12. 263169
  13. 616225
  14. 257049
  15. 769129
  16. 1100401
  17. 56169
  18. 20449
  19. 61009
  20. 5654884
  21. 657721
  22. 110224
  23. 707281
  24. 2433600
  25. 863041
  26. 60025
  27. 4968441
  28. 938961
  29. 617796
  30. 323761
  31. 17032129
  32. 66015625
  33. 52533504
  34. 51194025
  35. 69169
  36. 535824
  37. 103684
  38. 29181604
  39. 51076
  40. 541696

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