← 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 978 · 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. 1.1085² =
  2. 2.1628² =
  3. 3.438² =
  4. 4.541² =
  5. 5.732² =
  6. 6.150² =
  7. 7.793² =
  8. 8.878² =
  9. 9.405² =
  10. 10.9550² =
  11. 11.330² =
  12. 12.4784² =
  13. 13.697² =
  14. 14.238² =
  15. 15.379² =
  16. 16.326² =
  17. 17.621² =
  18. 18.436² =
  19. 19.4445² =
  20. 20.5217² =
  21. 21.895² =
  22. 22.9725² =
  23. 23.189² =
  24. 24.558² =
  25. 25.651² =
  26. 26.508² =
  27. 27.640² =
  28. 28.223² =
  29. 29.303² =
  30. 30.368² =
  31. 31.989² =
  32. 32.123² =
  33. 33.353² =
  34. 34.333² =
  35. 35.944² =
  36. 36.375² =
  37. 37.6136² =
  38. 38.559² =
  39. 39.636² =
  40. 40.518² =

Answer key

  1. 1177225
  2. 2650384
  3. 191844
  4. 292681
  5. 535824
  6. 22500
  7. 628849
  8. 770884
  9. 164025
  10. 91202500
  11. 108900
  12. 22886656
  13. 485809
  14. 56644
  15. 143641
  16. 106276
  17. 385641
  18. 190096
  19. 19758025
  20. 27217089
  21. 801025
  22. 94575625
  23. 35721
  24. 311364
  25. 423801
  26. 258064
  27. 409600
  28. 49729
  29. 91809
  30. 135424
  31. 978121
  32. 15129
  33. 124609
  34. 110889
  35. 891136
  36. 140625
  37. 37650496
  38. 312481
  39. 404496
  40. 268324

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