← 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 682 · 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. 1.5986² =
  2. 2.5781² =
  3. 3.564² =
  4. 4.971² =
  5. 5.338² =
  6. 6.1703² =
  7. 7.149² =
  8. 8.4836² =
  9. 9.785² =
  10. 10.189² =
  11. 11.3601² =
  12. 12.1600² =
  13. 13.727² =
  14. 14.977² =
  15. 15.512² =
  16. 16.746² =
  17. 17.618² =
  18. 18.651² =
  19. 19.926² =
  20. 20.3802² =
  21. 21.906² =
  22. 22.334² =
  23. 23.4642² =
  24. 24.541² =
  25. 25.335² =
  26. 26.359² =
  27. 27.948² =
  28. 28.272² =
  29. 29.258² =
  30. 30.664² =
  31. 31.3352² =
  32. 32.493² =
  33. 33.3132² =
  34. 34.132² =
  35. 35.898² =
  36. 36.694² =
  37. 37.719² =
  38. 38.444² =
  39. 39.133² =
  40. 40.562² =

Answer key

  1. 35832196
  2. 33419961
  3. 318096
  4. 942841
  5. 114244
  6. 2900209
  7. 22201
  8. 23386896
  9. 616225
  10. 35721
  11. 12967201
  12. 2560000
  13. 528529
  14. 954529
  15. 262144
  16. 556516
  17. 381924
  18. 423801
  19. 857476
  20. 14455204
  21. 820836
  22. 111556
  23. 21548164
  24. 292681
  25. 112225
  26. 128881
  27. 898704
  28. 73984
  29. 66564
  30. 440896
  31. 11235904
  32. 243049
  33. 9809424
  34. 17424
  35. 806404
  36. 481636
  37. 516961
  38. 197136
  39. 17689
  40. 315844

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