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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 394 · 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. 1.627² =
  2. 2.7086² =
  3. 3.4278² =
  4. 4.2735² =
  5. 5.123² =
  6. 6.287² =
  7. 7.225² =
  8. 8.9584² =
  9. 9.8554² =
  10. 10.932² =
  11. 11.598² =
  12. 12.153² =
  13. 13.3593² =
  14. 14.770² =
  15. 15.740² =
  16. 16.484² =
  17. 17.5893² =
  18. 18.181² =
  19. 19.525² =
  20. 20.972² =
  21. 21.241² =
  22. 22.692² =
  23. 23.921² =
  24. 24.711² =
  25. 25.5527² =
  26. 26.263² =
  27. 27.380² =
  28. 28.869² =
  29. 29.3402² =
  30. 30.834² =
  31. 31.695² =
  32. 32.5068² =
  33. 33.571² =
  34. 34.7394² =
  35. 35.248² =
  36. 36.7688² =
  37. 37.601² =
  38. 38.391² =
  39. 39.970² =
  40. 40.405² =

Answer key

  1. 393129
  2. 50211396
  3. 18301284
  4. 7480225
  5. 15129
  6. 82369
  7. 50625
  8. 91853056
  9. 73170916
  10. 868624
  11. 357604
  12. 23409
  13. 12909649
  14. 592900
  15. 547600
  16. 234256
  17. 34727449
  18. 32761
  19. 275625
  20. 944784
  21. 58081
  22. 478864
  23. 848241
  24. 505521
  25. 30547729
  26. 69169
  27. 144400
  28. 755161
  29. 11573604
  30. 695556
  31. 483025
  32. 25684624
  33. 326041
  34. 54671236
  35. 61504
  36. 59105344
  37. 361201
  38. 152881
  39. 940900
  40. 164025

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