← 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 122 · 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. 1.700² =
  2. 2.919² =
  3. 3.651² =
  4. 4.409² =
  5. 5.1670² =
  6. 6.324² =
  7. 7.252² =
  8. 8.848² =
  9. 9.3945² =
  10. 10.188² =
  11. 11.6735² =
  12. 12.246² =
  13. 13.400² =
  14. 14.314² =
  15. 15.318² =
  16. 16.498² =
  17. 17.7087² =
  18. 18.244² =
  19. 19.642² =
  20. 20.584² =
  21. 21.246² =
  22. 22.176² =
  23. 23.944² =
  24. 24.1437² =
  25. 25.610² =
  26. 26.969² =
  27. 27.5786² =
  28. 28.6539² =
  29. 29.8107² =
  30. 30.683² =
  31. 31.665² =
  32. 32.751² =
  33. 33.931² =
  34. 34.182² =
  35. 35.822² =
  36. 36.872² =
  37. 37.256² =
  38. 38.563² =
  39. 39.3303² =
  40. 40.1621² =

Answer key

  1. 490000
  2. 844561
  3. 423801
  4. 167281
  5. 2788900
  6. 104976
  7. 63504
  8. 719104
  9. 15563025
  10. 35344
  11. 45360225
  12. 60516
  13. 160000
  14. 98596
  15. 101124
  16. 248004
  17. 50225569
  18. 59536
  19. 412164
  20. 341056
  21. 60516
  22. 30976
  23. 891136
  24. 2064969
  25. 372100
  26. 938961
  27. 33477796
  28. 42758521
  29. 65723449
  30. 466489
  31. 442225
  32. 564001
  33. 866761
  34. 33124
  35. 675684
  36. 760384
  37. 65536
  38. 316969
  39. 10909809
  40. 2627641

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