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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 835 · 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. 1.128² =
  2. 2.967² =
  3. 3.240² =
  4. 4.6015² =
  5. 5.4840² =
  6. 6.476² =
  7. 7.261² =
  8. 8.502² =
  9. 9.8392² =
  10. 10.126² =
  11. 11.237² =
  12. 12.8067² =
  13. 13.3170² =
  14. 14.744² =
  15. 15.4795² =
  16. 16.1971² =
  17. 17.803² =
  18. 18.735² =
  19. 19.626² =
  20. 20.838² =
  21. 21.866² =
  22. 22.7833² =
  23. 23.237² =
  24. 24.1613² =
  25. 25.954² =
  26. 26.273² =
  27. 27.803² =
  28. 28.823² =
  29. 29.408² =
  30. 30.341² =
  31. 31.242² =
  32. 32.2631² =
  33. 33.4038² =
  34. 34.349² =
  35. 35.489² =
  36. 36.566² =
  37. 37.842² =
  38. 38.1166² =
  39. 39.8344² =
  40. 40.6464² =

Answer key

  1. 16384
  2. 935089
  3. 57600
  4. 36180225
  5. 23425600
  6. 226576
  7. 68121
  8. 252004
  9. 70425664
  10. 15876
  11. 56169
  12. 65076489
  13. 10048900
  14. 553536
  15. 22992025
  16. 3884841
  17. 644809
  18. 540225
  19. 391876
  20. 702244
  21. 749956
  22. 61355889
  23. 56169
  24. 2601769
  25. 910116
  26. 74529
  27. 644809
  28. 677329
  29. 166464
  30. 116281
  31. 58564
  32. 6922161
  33. 16305444
  34. 121801
  35. 239121
  36. 320356
  37. 708964
  38. 1359556
  39. 69622336
  40. 41783296

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