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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 454 · 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. 1.1309² =
  2. 2.5957² =
  3. 3.999² =
  4. 4.1922² =
  5. 5.2070² =
  6. 6.999² =
  7. 7.223² =
  8. 8.148² =
  9. 9.182² =
  10. 10.1560² =
  11. 11.9074² =
  12. 12.472² =
  13. 13.396² =
  14. 14.4769² =
  15. 15.748² =
  16. 16.359² =
  17. 17.962² =
  18. 18.1944² =
  19. 19.119² =
  20. 20.976² =
  21. 21.346² =
  22. 22.1615² =
  23. 23.959² =
  24. 24.6791² =
  25. 25.969² =
  26. 26.136² =
  27. 27.538² =
  28. 28.745² =
  29. 29.520² =
  30. 30.300² =
  31. 31.466² =
  32. 32.8897² =
  33. 33.378² =
  34. 34.7109² =
  35. 35.3340² =
  36. 36.984² =
  37. 37.185² =
  38. 38.522² =
  39. 39.1669² =
  40. 40.4129² =

Answer key

  1. 1713481
  2. 35485849
  3. 998001
  4. 3694084
  5. 4284900
  6. 998001
  7. 49729
  8. 21904
  9. 33124
  10. 2433600
  11. 82337476
  12. 222784
  13. 156816
  14. 22743361
  15. 559504
  16. 128881
  17. 925444
  18. 3779136
  19. 14161
  20. 952576
  21. 119716
  22. 2608225
  23. 919681
  24. 46117681
  25. 938961
  26. 18496
  27. 289444
  28. 555025
  29. 270400
  30. 90000
  31. 217156
  32. 79156609
  33. 142884
  34. 50537881
  35. 11155600
  36. 968256
  37. 34225
  38. 272484
  39. 2785561
  40. 17048641

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