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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 432 · 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. 1.865² =
  2. 2.551² =
  3. 3.5710² =
  4. 4.913² =
  5. 5.2038² =
  6. 6.819² =
  7. 7.914² =
  8. 8.242² =
  9. 9.897² =
  10. 10.263² =
  11. 11.1046² =
  12. 12.600² =
  13. 13.656² =
  14. 14.5395² =
  15. 15.790² =
  16. 16.4576² =
  17. 17.949² =
  18. 18.667² =
  19. 19.382² =
  20. 20.8406² =
  21. 21.955² =
  22. 22.249² =
  23. 23.3491² =
  24. 24.747² =
  25. 25.9810² =
  26. 26.4193² =
  27. 27.3288² =
  28. 28.977² =
  29. 29.530² =
  30. 30.730² =
  31. 31.6178² =
  32. 32.712² =
  33. 33.927² =
  34. 34.2265² =
  35. 35.586² =
  36. 36.899² =
  37. 37.807² =
  38. 38.226² =
  39. 39.576² =
  40. 40.9551² =

Answer key

  1. 748225
  2. 303601
  3. 32604100
  4. 833569
  5. 4153444
  6. 670761
  7. 835396
  8. 58564
  9. 804609
  10. 69169
  11. 1094116
  12. 360000
  13. 430336
  14. 29106025
  15. 624100
  16. 20939776
  17. 900601
  18. 444889
  19. 145924
  20. 70660836
  21. 912025
  22. 62001
  23. 12187081
  24. 558009
  25. 96236100
  26. 17581249
  27. 10810944
  28. 954529
  29. 280900
  30. 532900
  31. 38167684
  32. 506944
  33. 859329
  34. 5130225
  35. 343396
  36. 808201
  37. 651249
  38. 51076
  39. 331776
  40. 91221601

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