← 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 217 · 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. 1.9250² =
  2. 2.997² =
  3. 3.859² =
  4. 4.624² =
  5. 5.576² =
  6. 6.174² =
  7. 7.653² =
  8. 8.8955² =
  9. 9.874² =
  10. 10.6276² =
  11. 11.7999² =
  12. 12.849² =
  13. 13.284² =
  14. 14.452² =
  15. 15.537² =
  16. 16.217² =
  17. 17.865² =
  18. 18.156² =
  19. 19.527² =
  20. 20.125² =
  21. 21.7794² =
  22. 22.724² =
  23. 23.449² =
  24. 24.733² =
  25. 25.725² =
  26. 26.474² =
  27. 27.357² =
  28. 28.312² =
  29. 29.8102² =
  30. 30.313² =
  31. 31.290² =
  32. 32.696² =
  33. 33.385² =
  34. 34.821² =
  35. 35.321² =
  36. 36.6954² =
  37. 37.1338² =
  38. 38.768² =
  39. 39.399² =
  40. 40.746² =

Answer key

  1. 85562500
  2. 994009
  3. 737881
  4. 389376
  5. 331776
  6. 30276
  7. 426409
  8. 80192025
  9. 763876
  10. 39388176
  11. 63984001
  12. 720801
  13. 80656
  14. 204304
  15. 288369
  16. 47089
  17. 748225
  18. 24336
  19. 277729
  20. 15625
  21. 60746436
  22. 524176
  23. 201601
  24. 537289
  25. 525625
  26. 224676
  27. 127449
  28. 97344
  29. 65642404
  30. 97969
  31. 84100
  32. 484416
  33. 148225
  34. 674041
  35. 103041
  36. 48358116
  37. 1790244
  38. 589824
  39. 159201
  40. 556516

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