← 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 803 · 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. 1.151² =
  2. 2.855² =
  3. 3.2460² =
  4. 4.332² =
  5. 5.532² =
  6. 6.955² =
  7. 7.352² =
  8. 8.2973² =
  9. 9.796² =
  10. 10.781² =
  11. 11.274² =
  12. 12.4811² =
  13. 13.813² =
  14. 14.847² =
  15. 15.122² =
  16. 16.8667² =
  17. 17.694² =
  18. 18.766² =
  19. 19.107² =
  20. 20.332² =
  21. 21.556² =
  22. 22.685² =
  23. 23.172² =
  24. 24.439² =
  25. 25.388² =
  26. 26.689² =
  27. 27.201² =
  28. 28.2737² =
  29. 29.7219² =
  30. 30.259² =
  31. 31.720² =
  32. 32.658² =
  33. 33.529² =
  34. 34.928² =
  35. 35.8135² =
  36. 36.238² =
  37. 37.299² =
  38. 38.121² =
  39. 39.205² =
  40. 40.6272² =

Answer key

  1. 22801
  2. 731025
  3. 6051600
  4. 110224
  5. 283024
  6. 912025
  7. 123904
  8. 8838729
  9. 633616
  10. 609961
  11. 75076
  12. 23145721
  13. 660969
  14. 717409
  15. 14884
  16. 75116889
  17. 481636
  18. 586756
  19. 11449
  20. 110224
  21. 309136
  22. 469225
  23. 29584
  24. 192721
  25. 150544
  26. 474721
  27. 40401
  28. 7491169
  29. 52113961
  30. 67081
  31. 518400
  32. 432964
  33. 279841
  34. 861184
  35. 66178225
  36. 56644
  37. 89401
  38. 14641
  39. 42025
  40. 39337984

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