← 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 929 · 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. 1.178² =
  2. 2.638² =
  3. 3.773² =
  4. 4.626² =
  5. 5.7877² =
  6. 6.9925² =
  7. 7.732² =
  8. 8.987² =
  9. 9.786² =
  10. 10.162² =
  11. 11.3056² =
  12. 12.5976² =
  13. 13.4153² =
  14. 14.2618² =
  15. 15.369² =
  16. 16.593² =
  17. 17.454² =
  18. 18.416² =
  19. 19.2013² =
  20. 20.224² =
  21. 21.5224² =
  22. 22.117² =
  23. 23.539² =
  24. 24.670² =
  25. 25.341² =
  26. 26.827² =
  27. 27.107² =
  28. 28.500² =
  29. 29.798² =
  30. 30.668² =
  31. 31.401² =
  32. 32.101² =
  33. 33.705² =
  34. 34.310² =
  35. 35.9207² =
  36. 36.447² =
  37. 37.2671² =
  38. 38.114² =
  39. 39.678² =
  40. 40.8056² =

Answer key

  1. 31684
  2. 407044
  3. 597529
  4. 391876
  5. 62047129
  6. 98505625
  7. 535824
  8. 974169
  9. 617796
  10. 26244
  11. 9339136
  12. 35712576
  13. 17247409
  14. 6853924
  15. 136161
  16. 351649
  17. 206116
  18. 173056
  19. 4052169
  20. 50176
  21. 27290176
  22. 13689
  23. 290521
  24. 448900
  25. 116281
  26. 683929
  27. 11449
  28. 250000
  29. 636804
  30. 446224
  31. 160801
  32. 10201
  33. 497025
  34. 96100
  35. 84768849
  36. 199809
  37. 7134241
  38. 12996
  39. 459684
  40. 64899136

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