← 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 922 · 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. 1.719² =
  2. 2.220² =
  3. 3.4884² =
  4. 4.562² =
  5. 5.581² =
  6. 6.678² =
  7. 7.4787² =
  8. 8.7013² =
  9. 9.8616² =
  10. 10.603² =
  11. 11.823² =
  12. 12.3342² =
  13. 13.920² =
  14. 14.834² =
  15. 15.2578² =
  16. 16.154² =
  17. 17.645² =
  18. 18.4685² =
  19. 19.2006² =
  20. 20.8345² =
  21. 21.110² =
  22. 22.9623² =
  23. 23.600² =
  24. 24.227² =
  25. 25.8535² =
  26. 26.3558² =
  27. 27.9521² =
  28. 28.250² =
  29. 29.813² =
  30. 30.7160² =
  31. 31.376² =
  32. 32.3400² =
  33. 33.983² =
  34. 34.838² =
  35. 35.279² =
  36. 36.1055² =
  37. 37.2107² =
  38. 38.374² =
  39. 39.337² =
  40. 40.270² =

Answer key

  1. 516961
  2. 48400
  3. 23853456
  4. 315844
  5. 337561
  6. 459684
  7. 22915369
  8. 49182169
  9. 74235456
  10. 363609
  11. 677329
  12. 11168964
  13. 846400
  14. 695556
  15. 6646084
  16. 23716
  17. 416025
  18. 21949225
  19. 4024036
  20. 69639025
  21. 12100
  22. 92602129
  23. 360000
  24. 51529
  25. 72846225
  26. 12659364
  27. 90649441
  28. 62500
  29. 660969
  30. 51265600
  31. 141376
  32. 11560000
  33. 966289
  34. 702244
  35. 77841
  36. 1113025
  37. 4439449
  38. 139876
  39. 113569
  40. 72900

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