← 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 673 · 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. 1.328² =
  2. 2.644² =
  3. 3.531² =
  4. 4.6429² =
  5. 5.814² =
  6. 6.550² =
  7. 7.2055² =
  8. 8.884² =
  9. 9.275² =
  10. 10.869² =
  11. 11.924² =
  12. 12.968² =
  13. 13.6873² =
  14. 14.999² =
  15. 15.1733² =
  16. 16.228² =
  17. 17.7599² =
  18. 18.297² =
  19. 19.875² =
  20. 20.751² =
  21. 21.680² =
  22. 22.108² =
  23. 23.271² =
  24. 24.115² =
  25. 25.333² =
  26. 26.509² =
  27. 27.341² =
  28. 28.1313² =
  29. 29.464² =
  30. 30.1953² =
  31. 31.2612² =
  32. 32.676² =
  33. 33.8522² =
  34. 34.209² =
  35. 35.3906² =
  36. 36.443² =
  37. 37.7413² =
  38. 38.907² =
  39. 39.9114² =
  40. 40.150² =

Answer key

  1. 107584
  2. 414736
  3. 281961
  4. 41332041
  5. 662596
  6. 302500
  7. 4223025
  8. 781456
  9. 75625
  10. 755161
  11. 853776
  12. 937024
  13. 47238129
  14. 998001
  15. 3003289
  16. 51984
  17. 57744801
  18. 88209
  19. 765625
  20. 564001
  21. 462400
  22. 11664
  23. 73441
  24. 13225
  25. 110889
  26. 259081
  27. 116281
  28. 1723969
  29. 215296
  30. 3814209
  31. 6822544
  32. 456976
  33. 72624484
  34. 43681
  35. 15256836
  36. 196249
  37. 54952569
  38. 822649
  39. 83064996
  40. 22500

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