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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 206 · 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. 1.542² =
  2. 2.7371² =
  3. 3.214² =
  4. 4.713² =
  5. 5.896² =
  6. 6.9425² =
  7. 7.8695² =
  8. 8.732² =
  9. 9.799² =
  10. 10.145² =
  11. 11.341² =
  12. 12.817² =
  13. 13.147² =
  14. 14.192² =
  15. 15.658² =
  16. 16.621² =
  17. 17.1575² =
  18. 18.430² =
  19. 19.5507² =
  20. 20.878² =
  21. 21.3597² =
  22. 22.317² =
  23. 23.2524² =
  24. 24.2073² =
  25. 25.227² =
  26. 26.1884² =
  27. 27.931² =
  28. 28.560² =
  29. 29.813² =
  30. 30.166² =
  31. 31.810² =
  32. 32.3991² =
  33. 33.406² =
  34. 34.940² =
  35. 35.451² =
  36. 36.359² =
  37. 37.751² =
  38. 38.808² =
  39. 39.8978² =
  40. 40.272² =

Answer key

  1. 293764
  2. 54331641
  3. 45796
  4. 508369
  5. 802816
  6. 88830625
  7. 75603025
  8. 535824
  9. 638401
  10. 21025
  11. 116281
  12. 667489
  13. 21609
  14. 36864
  15. 432964
  16. 385641
  17. 2480625
  18. 184900
  19. 30327049
  20. 770884
  21. 12938409
  22. 100489
  23. 6370576
  24. 4297329
  25. 51529
  26. 3549456
  27. 866761
  28. 313600
  29. 660969
  30. 27556
  31. 656100
  32. 15928081
  33. 164836
  34. 883600
  35. 203401
  36. 128881
  37. 564001
  38. 652864
  39. 80604484
  40. 73984

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