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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 286 · 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. 1.702² =
  2. 2.560² =
  3. 3.6911² =
  4. 4.202² =
  5. 5.833² =
  6. 6.975² =
  7. 7.398² =
  8. 8.470² =
  9. 9.9275² =
  10. 10.109² =
  11. 11.101² =
  12. 12.198² =
  13. 13.826² =
  14. 14.232² =
  15. 15.9211² =
  16. 16.3572² =
  17. 17.582² =
  18. 18.8635² =
  19. 19.1812² =
  20. 20.587² =
  21. 21.856² =
  22. 22.612² =
  23. 23.307² =
  24. 24.275² =
  25. 25.421² =
  26. 26.218² =
  27. 27.8235² =
  28. 28.266² =
  29. 29.871² =
  30. 30.104² =
  31. 31.7344² =
  32. 32.499² =
  33. 33.807² =
  34. 34.446² =
  35. 35.362² =
  36. 36.562² =
  37. 37.8565² =
  38. 38.7528² =
  39. 39.9268² =
  40. 40.368² =

Answer key

  1. 492804
  2. 313600
  3. 47761921
  4. 40804
  5. 693889
  6. 950625
  7. 158404
  8. 220900
  9. 86025625
  10. 11881
  11. 10201
  12. 39204
  13. 682276
  14. 53824
  15. 84842521
  16. 12759184
  17. 338724
  18. 74563225
  19. 3283344
  20. 344569
  21. 732736
  22. 374544
  23. 94249
  24. 75625
  25. 177241
  26. 47524
  27. 67815225
  28. 70756
  29. 758641
  30. 10816
  31. 53934336
  32. 249001
  33. 651249
  34. 198916
  35. 131044
  36. 315844
  37. 73359225
  38. 56670784
  39. 85895824
  40. 135424

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