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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 429 · 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. 1.511² =
  2. 2.2547² =
  3. 3.439² =
  4. 4.471² =
  5. 5.9771² =
  6. 6.1220² =
  7. 7.719² =
  8. 8.454² =
  9. 9.1533² =
  10. 10.321² =
  11. 11.250² =
  12. 12.1921² =
  13. 13.485² =
  14. 14.887² =
  15. 15.2061² =
  16. 16.992² =
  17. 17.8486² =
  18. 18.308² =
  19. 19.278² =
  20. 20.135² =
  21. 21.768² =
  22. 22.748² =
  23. 23.203² =
  24. 24.928² =
  25. 25.495² =
  26. 26.3428² =
  27. 27.370² =
  28. 28.260² =
  29. 29.820² =
  30. 30.226² =
  31. 31.6799² =
  32. 32.587² =
  33. 33.266² =
  34. 34.863² =
  35. 35.932² =
  36. 36.8509² =
  37. 37.357² =
  38. 38.298² =
  39. 39.166² =
  40. 40.189² =

Answer key

  1. 261121
  2. 6487209
  3. 192721
  4. 221841
  5. 95472441
  6. 1488400
  7. 516961
  8. 206116
  9. 2350089
  10. 103041
  11. 62500
  12. 3690241
  13. 235225
  14. 786769
  15. 4247721
  16. 984064
  17. 72012196
  18. 94864
  19. 77284
  20. 18225
  21. 589824
  22. 559504
  23. 41209
  24. 861184
  25. 245025
  26. 11751184
  27. 136900
  28. 67600
  29. 672400
  30. 51076
  31. 46226401
  32. 344569
  33. 70756
  34. 744769
  35. 868624
  36. 72403081
  37. 127449
  38. 88804
  39. 27556
  40. 35721

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