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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 578 · 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. 1.935² =
  2. 2.7264² =
  3. 3.2657² =
  4. 4.719² =
  5. 5.1383² =
  6. 6.246² =
  7. 7.829² =
  8. 8.863² =
  9. 9.504² =
  10. 10.692² =
  11. 11.406² =
  12. 12.2041² =
  13. 13.309² =
  14. 14.1490² =
  15. 15.271² =
  16. 16.6455² =
  17. 17.6980² =
  18. 18.369² =
  19. 19.1626² =
  20. 20.8249² =
  21. 21.118² =
  22. 22.239² =
  23. 23.8156² =
  24. 24.5600² =
  25. 25.297² =
  26. 26.2450² =
  27. 27.641² =
  28. 28.9702² =
  29. 29.6220² =
  30. 30.112² =
  31. 31.720² =
  32. 32.812² =
  33. 33.604² =
  34. 34.214² =
  35. 35.576² =
  36. 36.400² =
  37. 37.843² =
  38. 38.338² =
  39. 39.212² =
  40. 40.952² =

Answer key

  1. 874225
  2. 52765696
  3. 7059649
  4. 516961
  5. 1912689
  6. 60516
  7. 687241
  8. 744769
  9. 254016
  10. 478864
  11. 164836
  12. 4165681
  13. 95481
  14. 2220100
  15. 73441
  16. 41667025
  17. 48720400
  18. 136161
  19. 2643876
  20. 68046001
  21. 13924
  22. 57121
  23. 66520336
  24. 31360000
  25. 88209
  26. 6002500
  27. 410881
  28. 94128804
  29. 38688400
  30. 12544
  31. 518400
  32. 659344
  33. 364816
  34. 45796
  35. 331776
  36. 160000
  37. 710649
  38. 114244
  39. 44944
  40. 906304

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