← 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 469 · 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. 1.101² =
  2. 2.319² =
  3. 3.2189² =
  4. 4.166² =
  5. 5.197² =
  6. 6.2996² =
  7. 7.974² =
  8. 8.279² =
  9. 9.2409² =
  10. 10.3343² =
  11. 11.276² =
  12. 12.634² =
  13. 13.548² =
  14. 14.812² =
  15. 15.2456² =
  16. 16.309² =
  17. 17.347² =
  18. 18.338² =
  19. 19.639² =
  20. 20.101² =
  21. 21.249² =
  22. 22.486² =
  23. 23.9130² =
  24. 24.282² =
  25. 25.198² =
  26. 26.9535² =
  27. 27.240² =
  28. 28.9028² =
  29. 29.6693² =
  30. 30.866² =
  31. 31.545² =
  32. 32.918² =
  33. 33.936² =
  34. 34.908² =
  35. 35.787² =
  36. 36.899² =
  37. 37.8858² =
  38. 38.4889² =
  39. 39.984² =
  40. 40.311² =

Answer key

  1. 10201
  2. 101761
  3. 4791721
  4. 27556
  5. 38809
  6. 8976016
  7. 948676
  8. 77841
  9. 5803281
  10. 11175649
  11. 76176
  12. 401956
  13. 300304
  14. 659344
  15. 6031936
  16. 95481
  17. 120409
  18. 114244
  19. 408321
  20. 10201
  21. 62001
  22. 236196
  23. 83356900
  24. 79524
  25. 39204
  26. 90916225
  27. 57600
  28. 81504784
  29. 44796249
  30. 749956
  31. 297025
  32. 842724
  33. 876096
  34. 824464
  35. 619369
  36. 808201
  37. 78464164
  38. 23902321
  39. 968256
  40. 96721

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