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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 113 · 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. 1.778² =
  2. 2.3297² =
  3. 3.165² =
  4. 4.5235² =
  5. 5.316² =
  6. 6.812² =
  7. 7.2368² =
  8. 8.6258² =
  9. 9.154² =
  10. 10.544² =
  11. 11.473² =
  12. 12.8628² =
  13. 13.254² =
  14. 14.996² =
  15. 15.386² =
  16. 16.949² =
  17. 17.2213² =
  18. 18.297² =
  19. 19.2410² =
  20. 20.166² =
  21. 21.324² =
  22. 22.370² =
  23. 23.2721² =
  24. 24.631² =
  25. 25.788² =
  26. 26.151² =
  27. 27.413² =
  28. 28.8601² =
  29. 29.275² =
  30. 30.546² =
  31. 31.793² =
  32. 32.443² =
  33. 33.634² =
  34. 34.378² =
  35. 35.365² =
  36. 36.147² =
  37. 37.9809² =
  38. 38.872² =
  39. 39.739² =
  40. 40.246² =

Answer key

  1. 605284
  2. 10870209
  3. 27225
  4. 27405225
  5. 99856
  6. 659344
  7. 5607424
  8. 39162564
  9. 23716
  10. 295936
  11. 223729
  12. 74442384
  13. 64516
  14. 992016
  15. 148996
  16. 900601
  17. 4897369
  18. 88209
  19. 5808100
  20. 27556
  21. 104976
  22. 136900
  23. 7403841
  24. 398161
  25. 620944
  26. 22801
  27. 170569
  28. 73977201
  29. 75625
  30. 298116
  31. 628849
  32. 196249
  33. 401956
  34. 142884
  35. 133225
  36. 21609
  37. 96216481
  38. 760384
  39. 546121
  40. 60516

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