← 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 55 · 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. 1.9657² =
  2. 2.5982² =
  3. 3.6029² =
  4. 4.222² =
  5. 5.4141² =
  6. 6.276² =
  7. 7.825² =
  8. 8.460² =
  9. 9.694² =
  10. 10.4005² =
  11. 11.285² =
  12. 12.575² =
  13. 13.806² =
  14. 14.355² =
  15. 15.809² =
  16. 16.932² =
  17. 17.805² =
  18. 18.193² =
  19. 19.8404² =
  20. 20.317² =
  21. 21.8879² =
  22. 22.663² =
  23. 23.340² =
  24. 24.1093² =
  25. 25.3289² =
  26. 26.798² =
  27. 27.785² =
  28. 28.396² =
  29. 29.3089² =
  30. 30.5867² =
  31. 31.920² =
  32. 32.717² =
  33. 33.5937² =
  34. 34.3110² =
  35. 35.739² =
  36. 36.619² =
  37. 37.9188² =
  38. 38.8384² =
  39. 39.211² =
  40. 40.929² =

Answer key

  1. 93257649
  2. 35784324
  3. 36348841
  4. 49284
  5. 17147881
  6. 76176
  7. 680625
  8. 211600
  9. 481636
  10. 16040025
  11. 81225
  12. 330625
  13. 649636
  14. 126025
  15. 654481
  16. 868624
  17. 648025
  18. 37249
  19. 70627216
  20. 100489
  21. 78836641
  22. 439569
  23. 115600
  24. 1194649
  25. 10817521
  26. 636804
  27. 616225
  28. 156816
  29. 9541921
  30. 34421689
  31. 846400
  32. 514089
  33. 35247969
  34. 9672100
  35. 546121
  36. 383161
  37. 84419344
  38. 70291456
  39. 44521
  40. 863041

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