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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 453 · 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. 1.978² =
  2. 2.2481² =
  3. 3.263² =
  4. 4.102² =
  5. 5.1823² =
  6. 6.533² =
  7. 7.822² =
  8. 8.216² =
  9. 9.433² =
  10. 10.239² =
  11. 11.293² =
  12. 12.6140² =
  13. 13.7962² =
  14. 14.118² =
  15. 15.813² =
  16. 16.330² =
  17. 17.9620² =
  18. 18.825² =
  19. 19.275² =
  20. 20.126² =
  21. 21.2380² =
  22. 22.3960² =
  23. 23.737² =
  24. 24.634² =
  25. 25.843² =
  26. 26.527² =
  27. 27.490² =
  28. 28.6025² =
  29. 29.429² =
  30. 30.3125² =
  31. 31.924² =
  32. 32.892² =
  33. 33.181² =
  34. 34.9878² =
  35. 35.311² =
  36. 36.891² =
  37. 37.447² =
  38. 38.558² =
  39. 39.793² =
  40. 40.656² =

Answer key

  1. 956484
  2. 6155361
  3. 69169
  4. 10404
  5. 3323329
  6. 284089
  7. 675684
  8. 46656
  9. 187489
  10. 57121
  11. 85849
  12. 37699600
  13. 63393444
  14. 13924
  15. 660969
  16. 108900
  17. 92544400
  18. 680625
  19. 75625
  20. 15876
  21. 5664400
  22. 15681600
  23. 543169
  24. 401956
  25. 710649
  26. 277729
  27. 240100
  28. 36300625
  29. 184041
  30. 9765625
  31. 853776
  32. 795664
  33. 32761
  34. 97574884
  35. 96721
  36. 793881
  37. 199809
  38. 311364
  39. 628849
  40. 430336

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