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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 671 · 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. 1.909² =
  2. 2.228² =
  3. 3.797² =
  4. 4.1898² =
  5. 5.7973² =
  6. 6.328² =
  7. 7.451² =
  8. 8.454² =
  9. 9.9696² =
  10. 10.715² =
  11. 11.429² =
  12. 12.7543² =
  13. 13.3938² =
  14. 14.4689² =
  15. 15.3211² =
  16. 16.7831² =
  17. 17.780² =
  18. 18.650² =
  19. 19.517² =
  20. 20.362² =
  21. 21.427² =
  22. 22.194² =
  23. 23.573² =
  24. 24.743² =
  25. 25.946² =
  26. 26.874² =
  27. 27.605² =
  28. 28.520² =
  29. 29.164² =
  30. 30.599² =
  31. 31.138² =
  32. 32.965² =
  33. 33.242² =
  34. 34.6173² =
  35. 35.6702² =
  36. 36.2824² =
  37. 37.235² =
  38. 38.983² =
  39. 39.181² =
  40. 40.143² =

Answer key

  1. 826281
  2. 51984
  3. 635209
  4. 3602404
  5. 63568729
  6. 107584
  7. 203401
  8. 206116
  9. 94012416
  10. 511225
  11. 184041
  12. 56896849
  13. 15507844
  14. 21986721
  15. 10310521
  16. 61324561
  17. 608400
  18. 422500
  19. 267289
  20. 131044
  21. 182329
  22. 37636
  23. 328329
  24. 552049
  25. 894916
  26. 763876
  27. 366025
  28. 270400
  29. 26896
  30. 358801
  31. 19044
  32. 931225
  33. 58564
  34. 38105929
  35. 44916804
  36. 7974976
  37. 55225
  38. 966289
  39. 32761
  40. 20449

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