← 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 791 · 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. 1.119² =
  2. 2.2396² =
  3. 3.831² =
  4. 4.867² =
  5. 5.956² =
  6. 6.583² =
  7. 7.212² =
  8. 8.866² =
  9. 9.245² =
  10. 10.424² =
  11. 11.675² =
  12. 12.6390² =
  13. 13.325² =
  14. 14.9978² =
  15. 15.151² =
  16. 16.286² =
  17. 17.7992² =
  18. 18.494² =
  19. 19.268² =
  20. 20.3524² =
  21. 21.9389² =
  22. 22.965² =
  23. 23.527² =
  24. 24.965² =
  25. 25.453² =
  26. 26.945² =
  27. 27.9369² =
  28. 28.325² =
  29. 29.3318² =
  30. 30.988² =
  31. 31.388² =
  32. 32.7236² =
  33. 33.824² =
  34. 34.268² =
  35. 35.404² =
  36. 36.823² =
  37. 37.145² =
  38. 38.1326² =
  39. 39.633² =
  40. 40.402² =

Answer key

  1. 14161
  2. 5740816
  3. 690561
  4. 751689
  5. 913936
  6. 339889
  7. 44944
  8. 749956
  9. 60025
  10. 179776
  11. 455625
  12. 40832100
  13. 105625
  14. 99560484
  15. 22801
  16. 81796
  17. 63872064
  18. 244036
  19. 71824
  20. 12418576
  21. 88153321
  22. 931225
  23. 277729
  24. 931225
  25. 205209
  26. 893025
  27. 87778161
  28. 105625
  29. 11009124
  30. 976144
  31. 150544
  32. 52359696
  33. 678976
  34. 71824
  35. 163216
  36. 677329
  37. 21025
  38. 1758276
  39. 400689
  40. 161604

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