← 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 830 · 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. 1.142² =
  2. 2.718² =
  3. 3.2137² =
  4. 4.119² =
  5. 5.119² =
  6. 6.904² =
  7. 7.593² =
  8. 8.147² =
  9. 9.5239² =
  10. 10.771² =
  11. 11.9662² =
  12. 12.362² =
  13. 13.493² =
  14. 14.6200² =
  15. 15.956² =
  16. 16.478² =
  17. 17.757² =
  18. 18.2641² =
  19. 19.149² =
  20. 20.389² =
  21. 21.455² =
  22. 22.5103² =
  23. 23.274² =
  24. 24.1805² =
  25. 25.8699² =
  26. 26.7314² =
  27. 27.509² =
  28. 28.149² =
  29. 29.394² =
  30. 30.828² =
  31. 31.278² =
  32. 32.433² =
  33. 33.216² =
  34. 34.7004² =
  35. 35.897² =
  36. 36.5347² =
  37. 37.1015² =
  38. 38.5872² =
  39. 39.529² =
  40. 40.3570² =

Answer key

  1. 20164
  2. 515524
  3. 4566769
  4. 14161
  5. 14161
  6. 817216
  7. 351649
  8. 21609
  9. 27447121
  10. 594441
  11. 93354244
  12. 131044
  13. 243049
  14. 38440000
  15. 913936
  16. 228484
  17. 573049
  18. 6974881
  19. 22201
  20. 151321
  21. 207025
  22. 26040609
  23. 75076
  24. 3258025
  25. 75672601
  26. 53494596
  27. 259081
  28. 22201
  29. 155236
  30. 685584
  31. 77284
  32. 187489
  33. 46656
  34. 49056016
  35. 804609
  36. 28590409
  37. 1030225
  38. 34480384
  39. 279841
  40. 12744900

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