← 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 325 · 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. 1.135² =
  2. 2.296² =
  3. 3.836² =
  4. 4.1270² =
  5. 5.576² =
  6. 6.9894² =
  7. 7.214² =
  8. 8.294² =
  9. 9.243² =
  10. 10.3091² =
  11. 11.914² =
  12. 12.497² =
  13. 13.3108² =
  14. 14.238² =
  15. 15.395² =
  16. 16.2782² =
  17. 17.649² =
  18. 18.169² =
  19. 19.354² =
  20. 20.170² =
  21. 21.227² =
  22. 22.9838² =
  23. 23.539² =
  24. 24.297² =
  25. 25.618² =
  26. 26.642² =
  27. 27.874² =
  28. 28.111² =
  29. 29.843² =
  30. 30.254² =
  31. 31.2560² =
  32. 32.239² =
  33. 33.599² =
  34. 34.772² =
  35. 35.312² =
  36. 36.327² =
  37. 37.918² =
  38. 38.174² =
  39. 39.7673² =
  40. 40.850² =

Answer key

  1. 18225
  2. 87616
  3. 698896
  4. 1612900
  5. 331776
  6. 97891236
  7. 45796
  8. 86436
  9. 59049
  10. 9554281
  11. 835396
  12. 247009
  13. 9659664
  14. 56644
  15. 156025
  16. 7739524
  17. 421201
  18. 28561
  19. 125316
  20. 28900
  21. 51529
  22. 96786244
  23. 290521
  24. 88209
  25. 381924
  26. 412164
  27. 763876
  28. 12321
  29. 710649
  30. 64516
  31. 6553600
  32. 57121
  33. 358801
  34. 595984
  35. 97344
  36. 106929
  37. 842724
  38. 30276
  39. 58874929
  40. 722500

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