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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 859 · 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. 1.494² =
  2. 2.1309² =
  3. 3.6363² =
  4. 4.2189² =
  5. 5.810² =
  6. 6.1080² =
  7. 7.595² =
  8. 8.652² =
  9. 9.146² =
  10. 10.989² =
  11. 11.6671² =
  12. 12.333² =
  13. 13.802² =
  14. 14.655² =
  15. 15.893² =
  16. 16.133² =
  17. 17.817² =
  18. 18.253² =
  19. 19.207² =
  20. 20.3440² =
  21. 21.494² =
  22. 22.867² =
  23. 23.336² =
  24. 24.255² =
  25. 25.3192² =
  26. 26.2703² =
  27. 27.135² =
  28. 28.173² =
  29. 29.676² =
  30. 30.4688² =
  31. 31.2124² =
  32. 32.837² =
  33. 33.135² =
  34. 34.6666² =
  35. 35.323² =
  36. 36.636² =
  37. 37.303² =
  38. 38.8633² =
  39. 39.221² =
  40. 40.840² =

Answer key

  1. 244036
  2. 1713481
  3. 40487769
  4. 4791721
  5. 656100
  6. 1166400
  7. 354025
  8. 425104
  9. 21316
  10. 978121
  11. 44502241
  12. 110889
  13. 643204
  14. 429025
  15. 797449
  16. 17689
  17. 667489
  18. 64009
  19. 42849
  20. 11833600
  21. 244036
  22. 751689
  23. 112896
  24. 65025
  25. 10188864
  26. 7306209
  27. 18225
  28. 29929
  29. 456976
  30. 21977344
  31. 4511376
  32. 700569
  33. 18225
  34. 44435556
  35. 104329
  36. 404496
  37. 91809
  38. 74528689
  39. 48841
  40. 705600

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