← 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 970 · 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. 1.432² =
  2. 2.471² =
  3. 3.784² =
  4. 4.9109² =
  5. 5.8559² =
  6. 6.777² =
  7. 7.266² =
  8. 8.1308² =
  9. 9.160² =
  10. 10.3035² =
  11. 11.434² =
  12. 12.814² =
  13. 13.1038² =
  14. 14.280² =
  15. 15.3401² =
  16. 16.645² =
  17. 17.224² =
  18. 18.514² =
  19. 19.433² =
  20. 20.694² =
  21. 21.506² =
  22. 22.709² =
  23. 23.467² =
  24. 24.302² =
  25. 25.3387² =
  26. 26.447² =
  27. 27.144² =
  28. 28.3726² =
  29. 29.389² =
  30. 30.2739² =
  31. 31.209² =
  32. 32.338² =
  33. 33.8377² =
  34. 34.578² =
  35. 35.535² =
  36. 36.981² =
  37. 37.552² =
  38. 38.973² =
  39. 39.240² =
  40. 40.109² =

Answer key

  1. 186624
  2. 221841
  3. 614656
  4. 82973881
  5. 73256481
  6. 603729
  7. 70756
  8. 1710864
  9. 25600
  10. 9211225
  11. 188356
  12. 662596
  13. 1077444
  14. 78400
  15. 11566801
  16. 416025
  17. 50176
  18. 264196
  19. 187489
  20. 481636
  21. 256036
  22. 502681
  23. 218089
  24. 91204
  25. 11471769
  26. 199809
  27. 20736
  28. 13883076
  29. 151321
  30. 7502121
  31. 43681
  32. 114244
  33. 70174129
  34. 334084
  35. 286225
  36. 962361
  37. 304704
  38. 946729
  39. 57600
  40. 11881

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