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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 353 · 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. 1.3585² =
  2. 2.880² =
  3. 3.532² =
  4. 4.8232² =
  5. 5.762² =
  6. 6.3009² =
  7. 7.704² =
  8. 8.215² =
  9. 9.1685² =
  10. 10.6402² =
  11. 11.1622² =
  12. 12.716² =
  13. 13.334² =
  14. 14.244² =
  15. 15.208² =
  16. 16.234² =
  17. 17.217² =
  18. 18.951² =
  19. 19.994² =
  20. 20.595² =
  21. 21.243² =
  22. 22.913² =
  23. 23.959² =
  24. 24.7368² =
  25. 25.9934² =
  26. 26.249² =
  27. 27.4927² =
  28. 28.3755² =
  29. 29.819² =
  30. 30.609² =
  31. 31.156² =
  32. 32.1936² =
  33. 33.4044² =
  34. 34.744² =
  35. 35.605² =
  36. 36.962² =
  37. 37.760² =
  38. 38.2196² =
  39. 39.786² =
  40. 40.482² =

Answer key

  1. 12852225
  2. 774400
  3. 283024
  4. 67765824
  5. 580644
  6. 9054081
  7. 495616
  8. 46225
  9. 2839225
  10. 40985604
  11. 2630884
  12. 512656
  13. 111556
  14. 59536
  15. 43264
  16. 54756
  17. 47089
  18. 904401
  19. 988036
  20. 354025
  21. 59049
  22. 833569
  23. 919681
  24. 54287424
  25. 98684356
  26. 62001
  27. 24275329
  28. 14100025
  29. 670761
  30. 370881
  31. 24336
  32. 3748096
  33. 16353936
  34. 553536
  35. 366025
  36. 925444
  37. 577600
  38. 4822416
  39. 617796
  40. 232324

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