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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 968 · 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. 1.149² =
  2. 2.331² =
  3. 3.343² =
  4. 4.103² =
  5. 5.283² =
  6. 6.524² =
  7. 7.650² =
  8. 8.332² =
  9. 9.1922² =
  10. 10.410² =
  11. 11.909² =
  12. 12.8909² =
  13. 13.297² =
  14. 14.525² =
  15. 15.841² =
  16. 16.395² =
  17. 17.780² =
  18. 18.607² =
  19. 19.826² =
  20. 20.7366² =
  21. 21.251² =
  22. 22.9596² =
  23. 23.3107² =
  24. 24.5723² =
  25. 25.360² =
  26. 26.579² =
  27. 27.8539² =
  28. 28.447² =
  29. 29.791² =
  30. 30.600² =
  31. 31.9764² =
  32. 32.707² =
  33. 33.2135² =
  34. 34.531² =
  35. 35.744² =
  36. 36.958² =
  37. 37.661² =
  38. 38.536² =
  39. 39.353² =
  40. 40.745² =

Answer key

  1. 22201
  2. 109561
  3. 117649
  4. 10609
  5. 80089
  6. 274576
  7. 422500
  8. 110224
  9. 3694084
  10. 168100
  11. 826281
  12. 79370281
  13. 88209
  14. 275625
  15. 707281
  16. 156025
  17. 608400
  18. 368449
  19. 682276
  20. 54257956
  21. 63001
  22. 92083216
  23. 9653449
  24. 32752729
  25. 129600
  26. 335241
  27. 72914521
  28. 199809
  29. 625681
  30. 360000
  31. 95335696
  32. 499849
  33. 4558225
  34. 281961
  35. 553536
  36. 917764
  37. 436921
  38. 287296
  39. 124609
  40. 555025

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