← 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 537 · 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. 1.213² =
  2. 2.819² =
  3. 3.474² =
  4. 4.2336² =
  5. 5.277² =
  6. 6.246² =
  7. 7.2446² =
  8. 8.2214² =
  9. 9.187² =
  10. 10.9062² =
  11. 11.960² =
  12. 12.3643² =
  13. 13.267² =
  14. 14.860² =
  15. 15.962² =
  16. 16.6169² =
  17. 17.465² =
  18. 18.207² =
  19. 19.735² =
  20. 20.614² =
  21. 21.5520² =
  22. 22.748² =
  23. 23.545² =
  24. 24.106² =
  25. 25.948² =
  26. 26.723² =
  27. 27.784² =
  28. 28.676² =
  29. 29.366² =
  30. 30.279² =
  31. 31.913² =
  32. 32.933² =
  33. 33.724² =
  34. 34.979² =
  35. 35.9017² =
  36. 36.3653² =
  37. 37.666² =
  38. 38.8243² =
  39. 39.217² =
  40. 40.304² =

Answer key

  1. 45369
  2. 670761
  3. 224676
  4. 5456896
  5. 76729
  6. 60516
  7. 5982916
  8. 4901796
  9. 34969
  10. 82119844
  11. 921600
  12. 13271449
  13. 71289
  14. 739600
  15. 925444
  16. 38056561
  17. 216225
  18. 42849
  19. 540225
  20. 376996
  21. 30470400
  22. 559504
  23. 297025
  24. 11236
  25. 898704
  26. 522729
  27. 614656
  28. 456976
  29. 133956
  30. 77841
  31. 833569
  32. 870489
  33. 524176
  34. 958441
  35. 81306289
  36. 13344409
  37. 443556
  38. 67947049
  39. 47089
  40. 92416

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