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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 979 · 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. 1.1418² =
  2. 2.6312² =
  3. 3.899² =
  4. 4.354² =
  5. 5.1846² =
  6. 6.751² =
  7. 7.216² =
  8. 8.911² =
  9. 9.8157² =
  10. 10.525² =
  11. 11.6786² =
  12. 12.724² =
  13. 13.400² =
  14. 14.932² =
  15. 15.1196² =
  16. 16.670² =
  17. 17.592² =
  18. 18.5756² =
  19. 19.359² =
  20. 20.455² =
  21. 21.2081² =
  22. 22.589² =
  23. 23.1148² =
  24. 24.7660² =
  25. 25.107² =
  26. 26.6614² =
  27. 27.604² =
  28. 28.2442² =
  29. 29.2154² =
  30. 30.479² =
  31. 31.4168² =
  32. 32.9967² =
  33. 33.5132² =
  34. 34.4239² =
  35. 35.951² =
  36. 36.820² =
  37. 37.967² =
  38. 38.772² =
  39. 39.986² =
  40. 40.361² =

Answer key

  1. 2010724
  2. 39841344
  3. 808201
  4. 125316
  5. 3407716
  6. 564001
  7. 46656
  8. 829921
  9. 66536649
  10. 275625
  11. 46049796
  12. 524176
  13. 160000
  14. 868624
  15. 1430416
  16. 448900
  17. 350464
  18. 33131536
  19. 128881
  20. 207025
  21. 4330561
  22. 346921
  23. 1317904
  24. 58675600
  25. 11449
  26. 43744996
  27. 364816
  28. 5963364
  29. 4639716
  30. 229441
  31. 17372224
  32. 99341089
  33. 26337424
  34. 17969121
  35. 904401
  36. 672400
  37. 935089
  38. 595984
  39. 972196
  40. 130321

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