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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 561 · 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. 1.564² =
  2. 2.276² =
  3. 3.636² =
  4. 4.702² =
  5. 5.305² =
  6. 6.230² =
  7. 7.772² =
  8. 8.607² =
  9. 9.4141² =
  10. 10.730² =
  11. 11.707² =
  12. 12.2781² =
  13. 13.801² =
  14. 14.9757² =
  15. 15.194² =
  16. 16.107² =
  17. 17.4215² =
  18. 18.675² =
  19. 19.392² =
  20. 20.9146² =
  21. 21.195² =
  22. 22.892² =
  23. 23.6478² =
  24. 24.158² =
  25. 25.210² =
  26. 26.251² =
  27. 27.969² =
  28. 28.214² =
  29. 29.539² =
  30. 30.799² =
  31. 31.376² =
  32. 32.2972² =
  33. 33.1915² =
  34. 34.887² =
  35. 35.980² =
  36. 36.621² =
  37. 37.8808² =
  38. 38.5651² =
  39. 39.6384² =
  40. 40.566² =

Answer key

  1. 318096
  2. 76176
  3. 404496
  4. 492804
  5. 93025
  6. 52900
  7. 595984
  8. 368449
  9. 17147881
  10. 532900
  11. 499849
  12. 7733961
  13. 641601
  14. 95199049
  15. 37636
  16. 11449
  17. 17766225
  18. 455625
  19. 153664
  20. 83649316
  21. 38025
  22. 795664
  23. 41964484
  24. 24964
  25. 44100
  26. 63001
  27. 938961
  28. 45796
  29. 290521
  30. 638401
  31. 141376
  32. 8832784
  33. 3667225
  34. 786769
  35. 960400
  36. 385641
  37. 77580864
  38. 31933801
  39. 40755456
  40. 320356

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