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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 426 · 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. 1.885² =
  2. 2.255² =
  3. 3.830² =
  4. 4.356² =
  5. 5.199² =
  6. 6.276² =
  7. 7.191² =
  8. 8.118² =
  9. 9.184² =
  10. 10.250² =
  11. 11.472² =
  12. 12.7507² =
  13. 13.647² =
  14. 14.1659² =
  15. 15.875² =
  16. 16.859² =
  17. 17.145² =
  18. 18.1457² =
  19. 19.269² =
  20. 20.214² =
  21. 21.7659² =
  22. 22.221² =
  23. 23.877² =
  24. 24.9942² =
  25. 25.409² =
  26. 26.2146² =
  27. 27.114² =
  28. 28.1098² =
  29. 29.177² =
  30. 30.4795² =
  31. 31.153² =
  32. 32.821² =
  33. 33.419² =
  34. 34.601² =
  35. 35.2004² =
  36. 36.135² =
  37. 37.4153² =
  38. 38.516² =
  39. 39.3291² =
  40. 40.324² =

Answer key

  1. 783225
  2. 65025
  3. 688900
  4. 126736
  5. 39601
  6. 76176
  7. 36481
  8. 13924
  9. 33856
  10. 62500
  11. 222784
  12. 56355049
  13. 418609
  14. 2752281
  15. 765625
  16. 737881
  17. 21025
  18. 2122849
  19. 72361
  20. 45796
  21. 58660281
  22. 48841
  23. 769129
  24. 98843364
  25. 167281
  26. 4605316
  27. 12996
  28. 1205604
  29. 31329
  30. 22992025
  31. 23409
  32. 674041
  33. 175561
  34. 361201
  35. 4016016
  36. 18225
  37. 17247409
  38. 266256
  39. 10830681
  40. 104976

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