← 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 622 · 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. 1.972² =
  2. 2.5800² =
  3. 3.550² =
  4. 4.735² =
  5. 5.823² =
  6. 6.265² =
  7. 7.424² =
  8. 8.233² =
  9. 9.711² =
  10. 10.681² =
  11. 11.648² =
  12. 12.397² =
  13. 13.236² =
  14. 14.4252² =
  15. 15.187² =
  16. 16.940² =
  17. 17.375² =
  18. 18.943² =
  19. 19.991² =
  20. 20.364² =
  21. 21.299² =
  22. 22.8062² =
  23. 23.170² =
  24. 24.7372² =
  25. 25.6229² =
  26. 26.153² =
  27. 27.534² =
  28. 28.665² =
  29. 29.4378² =
  30. 30.340² =
  31. 31.4409² =
  32. 32.569² =
  33. 33.1995² =
  34. 34.149² =
  35. 35.4005² =
  36. 36.195² =
  37. 37.194² =
  38. 38.679² =
  39. 39.9118² =
  40. 40.4577² =

Answer key

  1. 944784
  2. 33640000
  3. 302500
  4. 540225
  5. 677329
  6. 70225
  7. 179776
  8. 54289
  9. 505521
  10. 463761
  11. 419904
  12. 157609
  13. 55696
  14. 18079504
  15. 34969
  16. 883600
  17. 140625
  18. 889249
  19. 982081
  20. 132496
  21. 89401
  22. 64995844
  23. 28900
  24. 54346384
  25. 38800441
  26. 23409
  27. 285156
  28. 442225
  29. 19166884
  30. 115600
  31. 19439281
  32. 323761
  33. 3980025
  34. 22201
  35. 16040025
  36. 38025
  37. 37636
  38. 461041
  39. 83137924
  40. 20948929

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