← 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 276 · 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. 1.519² =
  2. 2.7633² =
  3. 3.2916² =
  4. 4.178² =
  5. 5.949² =
  6. 6.9736² =
  7. 7.102² =
  8. 8.449² =
  9. 9.820² =
  10. 10.186² =
  11. 11.105² =
  12. 12.783² =
  13. 13.718² =
  14. 14.212² =
  15. 15.385² =
  16. 16.805² =
  17. 17.628² =
  18. 18.196² =
  19. 19.106² =
  20. 20.785² =
  21. 21.481² =
  22. 22.251² =
  23. 23.417² =
  24. 24.402² =
  25. 25.193² =
  26. 26.446² =
  27. 27.648² =
  28. 28.4684² =
  29. 29.3555² =
  30. 30.293² =
  31. 31.701² =
  32. 32.988² =
  33. 33.927² =
  34. 34.1054² =
  35. 35.164² =
  36. 36.663² =
  37. 37.405² =
  38. 38.394² =
  39. 39.171² =
  40. 40.735² =

Answer key

  1. 269361
  2. 58262689
  3. 8503056
  4. 31684
  5. 900601
  6. 94789696
  7. 10404
  8. 201601
  9. 672400
  10. 34596
  11. 11025
  12. 613089
  13. 515524
  14. 44944
  15. 148225
  16. 648025
  17. 394384
  18. 38416
  19. 11236
  20. 616225
  21. 231361
  22. 63001
  23. 173889
  24. 161604
  25. 37249
  26. 198916
  27. 419904
  28. 21939856
  29. 12638025
  30. 85849
  31. 491401
  32. 976144
  33. 859329
  34. 1110916
  35. 26896
  36. 439569
  37. 164025
  38. 155236
  39. 29241
  40. 540225

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