← Squares of 3- and 4-digit numbers lesson New set →

Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 519 · 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. 1.504² =
  2. 2.539² =
  3. 3.311² =
  4. 4.5114² =
  5. 5.8296² =
  6. 6.560² =
  7. 7.981² =
  8. 8.5357² =
  9. 9.137² =
  10. 10.9700² =
  11. 11.467² =
  12. 12.716² =
  13. 13.6762² =
  14. 14.4800² =
  15. 15.207² =
  16. 16.871² =
  17. 17.820² =
  18. 18.703² =
  19. 19.725² =
  20. 20.9162² =
  21. 21.733² =
  22. 22.376² =
  23. 23.7573² =
  24. 24.707² =
  25. 25.7242² =
  26. 26.641² =
  27. 27.125² =
  28. 28.964² =
  29. 29.319² =
  30. 30.5214² =
  31. 31.130² =
  32. 32.524² =
  33. 33.229² =
  34. 34.113² =
  35. 35.1535² =
  36. 36.683² =
  37. 37.748² =
  38. 38.707² =
  39. 39.2043² =
  40. 40.1787² =

Answer key

  1. 254016
  2. 290521
  3. 96721
  4. 26152996
  5. 68823616
  6. 313600
  7. 962361
  8. 28697449
  9. 18769
  10. 94090000
  11. 218089
  12. 512656
  13. 45724644
  14. 23040000
  15. 42849
  16. 758641
  17. 672400
  18. 494209
  19. 525625
  20. 83942244
  21. 537289
  22. 141376
  23. 57350329
  24. 499849
  25. 52446564
  26. 410881
  27. 15625
  28. 929296
  29. 101761
  30. 27185796
  31. 16900
  32. 274576
  33. 52441
  34. 12769
  35. 2356225
  36. 466489
  37. 559504
  38. 499849
  39. 4173849
  40. 3193369

Free vedic maths lessons, practice and worksheets at talentjr.in/vedic-maths