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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 603 · 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. 1.634² =
  2. 2.8611² =
  3. 3.324² =
  4. 4.435² =
  5. 5.587² =
  6. 6.906² =
  7. 7.263² =
  8. 8.667² =
  9. 9.305² =
  10. 10.319² =
  11. 11.2203² =
  12. 12.683² =
  13. 13.3188² =
  14. 14.608² =
  15. 15.488² =
  16. 16.178² =
  17. 17.618² =
  18. 18.219² =
  19. 19.1642² =
  20. 20.274² =
  21. 21.524² =
  22. 22.2961² =
  23. 23.7349² =
  24. 24.5236² =
  25. 25.999² =
  26. 26.354² =
  27. 27.952² =
  28. 28.1688² =
  29. 29.894² =
  30. 30.4307² =
  31. 31.667² =
  32. 32.574² =
  33. 33.723² =
  34. 34.739² =
  35. 35.4744² =
  36. 36.113² =
  37. 37.684² =
  38. 38.2953² =
  39. 39.950² =
  40. 40.694² =

Answer key

  1. 401956
  2. 74149321
  3. 104976
  4. 189225
  5. 344569
  6. 820836
  7. 69169
  8. 444889
  9. 93025
  10. 101761
  11. 4853209
  12. 466489
  13. 10163344
  14. 369664
  15. 238144
  16. 31684
  17. 381924
  18. 47961
  19. 2696164
  20. 75076
  21. 274576
  22. 8767521
  23. 54007801
  24. 27415696
  25. 998001
  26. 125316
  27. 906304
  28. 2849344
  29. 799236
  30. 18550249
  31. 444889
  32. 329476
  33. 522729
  34. 546121
  35. 22505536
  36. 12769
  37. 467856
  38. 8720209
  39. 902500
  40. 481636

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