← 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 27 · 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. 1.147² =
  2. 2.958² =
  3. 3.249² =
  4. 4.445² =
  5. 5.303² =
  6. 6.264² =
  7. 7.243² =
  8. 8.9231² =
  9. 9.1404² =
  10. 10.576² =
  11. 11.137² =
  12. 12.766² =
  13. 13.829² =
  14. 14.193² =
  15. 15.179² =
  16. 16.743² =
  17. 17.966² =
  18. 18.794² =
  19. 19.945² =
  20. 20.307² =
  21. 21.384² =
  22. 22.540² =
  23. 23.1092² =
  24. 24.519² =
  25. 25.462² =
  26. 26.867² =
  27. 27.108² =
  28. 28.219² =
  29. 29.977² =
  30. 30.7097² =
  31. 31.736² =
  32. 32.202² =
  33. 33.224² =
  34. 34.988² =
  35. 35.839² =
  36. 36.5569² =
  37. 37.350² =
  38. 38.960² =
  39. 39.366² =
  40. 40.2761² =

Answer key

  1. 21609
  2. 917764
  3. 62001
  4. 198025
  5. 91809
  6. 69696
  7. 59049
  8. 85211361
  9. 1971216
  10. 331776
  11. 18769
  12. 586756
  13. 687241
  14. 37249
  15. 32041
  16. 552049
  17. 933156
  18. 630436
  19. 893025
  20. 94249
  21. 147456
  22. 291600
  23. 1192464
  24. 269361
  25. 213444
  26. 751689
  27. 11664
  28. 47961
  29. 954529
  30. 50367409
  31. 541696
  32. 40804
  33. 50176
  34. 976144
  35. 703921
  36. 31013761
  37. 122500
  38. 921600
  39. 133956
  40. 7623121

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