← 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 999 · 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. 1.5571² =
  2. 2.728² =
  3. 3.230² =
  4. 4.3535² =
  5. 5.299² =
  6. 6.543² =
  7. 7.441² =
  8. 8.616² =
  9. 9.742² =
  10. 10.298² =
  11. 11.995² =
  12. 12.305² =
  13. 13.233² =
  14. 14.727² =
  15. 15.406² =
  16. 16.7313² =
  17. 17.325² =
  18. 18.919² =
  19. 19.671² =
  20. 20.273² =
  21. 21.453² =
  22. 22.360² =
  23. 23.7209² =
  24. 24.706² =
  25. 25.554² =
  26. 26.107² =
  27. 27.614² =
  28. 28.3558² =
  29. 29.533² =
  30. 30.300² =
  31. 31.844² =
  32. 32.7671² =
  33. 33.588² =
  34. 34.652² =
  35. 35.384² =
  36. 36.734² =
  37. 37.197² =
  38. 38.116² =
  39. 39.289² =
  40. 40.940² =

Answer key

  1. 31036041
  2. 529984
  3. 52900
  4. 12496225
  5. 89401
  6. 294849
  7. 194481
  8. 379456
  9. 550564
  10. 88804
  11. 990025
  12. 93025
  13. 54289
  14. 528529
  15. 164836
  16. 53479969
  17. 105625
  18. 844561
  19. 450241
  20. 74529
  21. 205209
  22. 129600
  23. 51969681
  24. 498436
  25. 306916
  26. 11449
  27. 376996
  28. 12659364
  29. 284089
  30. 90000
  31. 712336
  32. 58844241
  33. 345744
  34. 425104
  35. 147456
  36. 538756
  37. 38809
  38. 13456
  39. 83521
  40. 883600

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