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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 503 · 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. 1.274² =
  2. 2.893² =
  3. 3.258² =
  4. 4.8378² =
  5. 5.4967² =
  6. 6.2324² =
  7. 7.8702² =
  8. 8.818² =
  9. 9.7989² =
  10. 10.428² =
  11. 11.316² =
  12. 12.963² =
  13. 13.234² =
  14. 14.7163² =
  15. 15.690² =
  16. 16.2210² =
  17. 17.122² =
  18. 18.7249² =
  19. 19.9706² =
  20. 20.586² =
  21. 21.345² =
  22. 22.8524² =
  23. 23.681² =
  24. 24.626² =
  25. 25.124² =
  26. 26.6794² =
  27. 27.935² =
  28. 28.873² =
  29. 29.699² =
  30. 30.818² =
  31. 31.149² =
  32. 32.1046² =
  33. 33.554² =
  34. 34.710² =
  35. 35.393² =
  36. 36.3062² =
  37. 37.570² =
  38. 38.190² =
  39. 39.773² =
  40. 40.8095² =

Answer key

  1. 75076
  2. 797449
  3. 66564
  4. 70190884
  5. 24671089
  6. 5400976
  7. 75724804
  8. 669124
  9. 63824121
  10. 183184
  11. 99856
  12. 927369
  13. 54756
  14. 51308569
  15. 476100
  16. 4884100
  17. 14884
  18. 52548001
  19. 94206436
  20. 343396
  21. 119025
  22. 72658576
  23. 463761
  24. 391876
  25. 15376
  26. 46158436
  27. 874225
  28. 762129
  29. 488601
  30. 669124
  31. 22201
  32. 1094116
  33. 306916
  34. 504100
  35. 154449
  36. 9375844
  37. 324900
  38. 36100
  39. 597529
  40. 65529025

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