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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 12 · 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. 1.927² =
  2. 2.213² =
  3. 3.893² =
  4. 4.6966² =
  5. 5.771² =
  6. 6.9720² =
  7. 7.8072² =
  8. 8.236² =
  9. 9.504² =
  10. 10.346² =
  11. 11.802² =
  12. 12.439² =
  13. 13.7777² =
  14. 14.613² =
  15. 15.726² =
  16. 16.117² =
  17. 17.4382² =
  18. 18.431² =
  19. 19.1870² =
  20. 20.9218² =
  21. 21.9262² =
  22. 22.275² =
  23. 23.516² =
  24. 24.122² =
  25. 25.953² =
  26. 26.674² =
  27. 27.678² =
  28. 28.9676² =
  29. 29.525² =
  30. 30.577² =
  31. 31.631² =
  32. 32.5813² =
  33. 33.352² =
  34. 34.2719² =
  35. 35.903² =
  36. 36.509² =
  37. 37.7553² =
  38. 38.346² =
  39. 39.609² =
  40. 40.167² =

Answer key

  1. 859329
  2. 45369
  3. 797449
  4. 48525156
  5. 594441
  6. 94478400
  7. 65157184
  8. 55696
  9. 254016
  10. 119716
  11. 643204
  12. 192721
  13. 60481729
  14. 375769
  15. 527076
  16. 13689
  17. 19201924
  18. 185761
  19. 3496900
  20. 84971524
  21. 85784644
  22. 75625
  23. 266256
  24. 14884
  25. 908209
  26. 454276
  27. 459684
  28. 93624976
  29. 275625
  30. 332929
  31. 398161
  32. 33790969
  33. 123904
  34. 7392961
  35. 815409
  36. 259081
  37. 57047809
  38. 119716
  39. 370881
  40. 27889

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