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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 444 · 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. 1.360² =
  2. 2.1737² =
  3. 3.740² =
  4. 4.447² =
  5. 5.9340² =
  6. 6.743² =
  7. 7.181² =
  8. 8.779² =
  9. 9.743² =
  10. 10.268² =
  11. 11.878² =
  12. 12.7523² =
  13. 13.6827² =
  14. 14.3057² =
  15. 15.347² =
  16. 16.970² =
  17. 17.153² =
  18. 18.621² =
  19. 19.500² =
  20. 20.485² =
  21. 21.417² =
  22. 22.205² =
  23. 23.900² =
  24. 24.705² =
  25. 25.716² =
  26. 26.9684² =
  27. 27.1008² =
  28. 28.670² =
  29. 29.834² =
  30. 30.438² =
  31. 31.1383² =
  32. 32.166² =
  33. 33.844² =
  34. 34.279² =
  35. 35.277² =
  36. 36.867² =
  37. 37.263² =
  38. 38.457² =
  39. 39.264² =
  40. 40.3498² =

Answer key

  1. 129600
  2. 3017169
  3. 547600
  4. 199809
  5. 87235600
  6. 552049
  7. 32761
  8. 606841
  9. 552049
  10. 71824
  11. 770884
  12. 56595529
  13. 46607929
  14. 9345249
  15. 120409
  16. 940900
  17. 23409
  18. 385641
  19. 250000
  20. 235225
  21. 173889
  22. 42025
  23. 810000
  24. 497025
  25. 512656
  26. 93779856
  27. 1016064
  28. 448900
  29. 695556
  30. 191844
  31. 1912689
  32. 27556
  33. 712336
  34. 77841
  35. 76729
  36. 751689
  37. 69169
  38. 208849
  39. 69696
  40. 12236004

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