← 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 208 · 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. 1.296² =
  2. 2.648² =
  3. 3.1319² =
  4. 4.6138² =
  5. 5.202² =
  6. 6.2292² =
  7. 7.619² =
  8. 8.576² =
  9. 9.312² =
  10. 10.6483² =
  11. 11.8283² =
  12. 12.824² =
  13. 13.4130² =
  14. 14.311² =
  15. 15.635² =
  16. 16.885² =
  17. 17.973² =
  18. 18.499² =
  19. 19.401² =
  20. 20.2722² =
  21. 21.478² =
  22. 22.223² =
  23. 23.3223² =
  24. 24.659² =
  25. 25.8190² =
  26. 26.302² =
  27. 27.611² =
  28. 28.6274² =
  29. 29.401² =
  30. 30.1926² =
  31. 31.685² =
  32. 32.167² =
  33. 33.457² =
  34. 34.5724² =
  35. 35.420² =
  36. 36.142² =
  37. 37.2566² =
  38. 38.693² =
  39. 39.867² =
  40. 40.3428² =

Answer key

  1. 87616
  2. 419904
  3. 1739761
  4. 37675044
  5. 40804
  6. 5253264
  7. 383161
  8. 331776
  9. 97344
  10. 42029289
  11. 68608089
  12. 678976
  13. 17056900
  14. 96721
  15. 403225
  16. 783225
  17. 946729
  18. 249001
  19. 160801
  20. 7409284
  21. 228484
  22. 49729
  23. 10387729
  24. 434281
  25. 67076100
  26. 91204
  27. 373321
  28. 39363076
  29. 160801
  30. 3709476
  31. 469225
  32. 27889
  33. 208849
  34. 32764176
  35. 176400
  36. 20164
  37. 6584356
  38. 480249
  39. 751689
  40. 11751184

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