← 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 399 · 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. 1.219² =
  2. 2.4095² =
  3. 3.1192² =
  4. 4.229² =
  5. 5.2677² =
  6. 6.590² =
  7. 7.778² =
  8. 8.332² =
  9. 9.674² =
  10. 10.1344² =
  11. 11.9718² =
  12. 12.493² =
  13. 13.1456² =
  14. 14.335² =
  15. 15.405² =
  16. 16.5254² =
  17. 17.908² =
  18. 18.858² =
  19. 19.997² =
  20. 20.7893² =
  21. 21.2416² =
  22. 22.2061² =
  23. 23.619² =
  24. 24.285² =
  25. 25.7716² =
  26. 26.646² =
  27. 27.635² =
  28. 28.137² =
  29. 29.946² =
  30. 30.156² =
  31. 31.166² =
  32. 32.290² =
  33. 33.191² =
  34. 34.1444² =
  35. 35.469² =
  36. 36.5564² =
  37. 37.6463² =
  38. 38.9754² =
  39. 39.803² =
  40. 40.332² =

Answer key

  1. 47961
  2. 16769025
  3. 1420864
  4. 52441
  5. 7166329
  6. 348100
  7. 605284
  8. 110224
  9. 454276
  10. 1806336
  11. 94439524
  12. 243049
  13. 2119936
  14. 112225
  15. 164025
  16. 27604516
  17. 824464
  18. 736164
  19. 994009
  20. 62299449
  21. 5837056
  22. 4247721
  23. 383161
  24. 81225
  25. 59536656
  26. 417316
  27. 403225
  28. 18769
  29. 894916
  30. 24336
  31. 27556
  32. 84100
  33. 36481
  34. 2085136
  35. 219961
  36. 30958096
  37. 41770369
  38. 95140516
  39. 644809
  40. 110224

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