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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 523 · 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. 1.252² =
  2. 2.4329² =
  3. 3.753² =
  4. 4.272² =
  5. 5.237² =
  6. 6.468² =
  7. 7.515² =
  8. 8.7686² =
  9. 9.6974² =
  10. 10.780² =
  11. 11.971² =
  12. 12.428² =
  13. 13.2473² =
  14. 14.276² =
  15. 15.318² =
  16. 16.880² =
  17. 17.8468² =
  18. 18.673² =
  19. 19.707² =
  20. 20.197² =
  21. 21.9518² =
  22. 22.951² =
  23. 23.724² =
  24. 24.667² =
  25. 25.963² =
  26. 26.532² =
  27. 27.829² =
  28. 28.748² =
  29. 29.864² =
  30. 30.105² =
  31. 31.2311² =
  32. 32.9383² =
  33. 33.898² =
  34. 34.1076² =
  35. 35.9218² =
  36. 36.255² =
  37. 37.262² =
  38. 38.479² =
  39. 39.740² =
  40. 40.396² =

Answer key

  1. 63504
  2. 18740241
  3. 567009
  4. 73984
  5. 56169
  6. 219024
  7. 265225
  8. 59074596
  9. 48636676
  10. 608400
  11. 942841
  12. 183184
  13. 6115729
  14. 76176
  15. 101124
  16. 774400
  17. 71707024
  18. 452929
  19. 499849
  20. 38809
  21. 90592324
  22. 904401
  23. 524176
  24. 444889
  25. 927369
  26. 283024
  27. 687241
  28. 559504
  29. 746496
  30. 11025
  31. 5340721
  32. 88040689
  33. 806404
  34. 1157776
  35. 84971524
  36. 65025
  37. 68644
  38. 229441
  39. 547600
  40. 156816

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