← 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 52 · 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. 1.1540² =
  2. 2.220² =
  3. 3.967² =
  4. 4.5232² =
  5. 5.711² =
  6. 6.8846² =
  7. 7.5989² =
  8. 8.654² =
  9. 9.693² =
  10. 10.522² =
  11. 11.775² =
  12. 12.9281² =
  13. 13.7199² =
  14. 14.179² =
  15. 15.5736² =
  16. 16.649² =
  17. 17.921² =
  18. 18.518² =
  19. 19.493² =
  20. 20.3263² =
  21. 21.671² =
  22. 22.5306² =
  23. 23.494² =
  24. 24.309² =
  25. 25.772² =
  26. 26.614² =
  27. 27.5116² =
  28. 28.8102² =
  29. 29.403² =
  30. 30.947² =
  31. 31.6442² =
  32. 32.9115² =
  33. 33.420² =
  34. 34.465² =
  35. 35.384² =
  36. 36.806² =
  37. 37.7593² =
  38. 38.668² =
  39. 39.837² =
  40. 40.141² =

Answer key

  1. 2371600
  2. 48400
  3. 935089
  4. 27373824
  5. 505521
  6. 78251716
  7. 35868121
  8. 427716
  9. 480249
  10. 272484
  11. 600625
  12. 86136961
  13. 51825601
  14. 32041
  15. 32901696
  16. 421201
  17. 848241
  18. 268324
  19. 243049
  20. 10647169
  21. 450241
  22. 28153636
  23. 244036
  24. 95481
  25. 595984
  26. 376996
  27. 26173456
  28. 65642404
  29. 162409
  30. 896809
  31. 41499364
  32. 83083225
  33. 176400
  34. 216225
  35. 147456
  36. 649636
  37. 57653649
  38. 446224
  39. 700569
  40. 19881

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