← 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 175 · 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. 1.665² =
  2. 2.144² =
  3. 3.510² =
  4. 4.7540² =
  5. 5.463² =
  6. 6.980² =
  7. 7.2769² =
  8. 8.2698² =
  9. 9.6865² =
  10. 10.4654² =
  11. 11.253² =
  12. 12.853² =
  13. 13.486² =
  14. 14.977² =
  15. 15.813² =
  16. 16.870² =
  17. 17.153² =
  18. 18.4351² =
  19. 19.728² =
  20. 20.729² =
  21. 21.2309² =
  22. 22.356² =
  23. 23.444² =
  24. 24.633² =
  25. 25.369² =
  26. 26.429² =
  27. 27.496² =
  28. 28.228² =
  29. 29.488² =
  30. 30.5443² =
  31. 31.853² =
  32. 32.922² =
  33. 33.2679² =
  34. 34.984² =
  35. 35.569² =
  36. 36.7418² =
  37. 37.8565² =
  38. 38.947² =
  39. 39.616² =
  40. 40.515² =

Answer key

  1. 442225
  2. 20736
  3. 260100
  4. 56851600
  5. 214369
  6. 960400
  7. 7667361
  8. 7279204
  9. 47128225
  10. 21659716
  11. 64009
  12. 727609
  13. 236196
  14. 954529
  15. 660969
  16. 756900
  17. 23409
  18. 18931201
  19. 529984
  20. 531441
  21. 5331481
  22. 126736
  23. 197136
  24. 400689
  25. 136161
  26. 184041
  27. 246016
  28. 51984
  29. 238144
  30. 29626249
  31. 727609
  32. 850084
  33. 7177041
  34. 968256
  35. 323761
  36. 55026724
  37. 73359225
  38. 896809
  39. 379456
  40. 265225

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