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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 976 · 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. 1.5484² =
  2. 2.946² =
  3. 3.942² =
  4. 4.899² =
  5. 5.962² =
  6. 6.5945² =
  7. 7.696² =
  8. 8.942² =
  9. 9.626² =
  10. 10.119² =
  11. 11.964² =
  12. 12.300² =
  13. 13.849² =
  14. 14.507² =
  15. 15.5015² =
  16. 16.333² =
  17. 17.425² =
  18. 18.745² =
  19. 19.887² =
  20. 20.801² =
  21. 21.587² =
  22. 22.123² =
  23. 23.721² =
  24. 24.1418² =
  25. 25.602² =
  26. 26.945² =
  27. 27.4802² =
  28. 28.225² =
  29. 29.949² =
  30. 30.445² =
  31. 31.644² =
  32. 32.918² =
  33. 33.226² =
  34. 34.493² =
  35. 35.221² =
  36. 36.409² =
  37. 37.5619² =
  38. 38.1310² =
  39. 39.337² =
  40. 40.385² =

Answer key

  1. 30074256
  2. 894916
  3. 887364
  4. 808201
  5. 925444
  6. 35343025
  7. 484416
  8. 887364
  9. 391876
  10. 14161
  11. 929296
  12. 90000
  13. 720801
  14. 257049
  15. 25150225
  16. 110889
  17. 180625
  18. 555025
  19. 786769
  20. 641601
  21. 344569
  22. 15129
  23. 519841
  24. 2010724
  25. 362404
  26. 893025
  27. 23059204
  28. 50625
  29. 900601
  30. 198025
  31. 414736
  32. 842724
  33. 51076
  34. 243049
  35. 48841
  36. 167281
  37. 31573161
  38. 1716100
  39. 113569
  40. 148225

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