← 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 380 · 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. 1.274² =
  2. 2.320² =
  3. 3.225² =
  4. 4.274² =
  5. 5.611² =
  6. 6.247² =
  7. 7.2982² =
  8. 8.643² =
  9. 9.472² =
  10. 10.673² =
  11. 11.298² =
  12. 12.486² =
  13. 13.165² =
  14. 14.213² =
  15. 15.487² =
  16. 16.759² =
  17. 17.110² =
  18. 18.1499² =
  19. 19.161² =
  20. 20.167² =
  21. 21.554² =
  22. 22.732² =
  23. 23.952² =
  24. 24.698² =
  25. 25.292² =
  26. 26.328² =
  27. 27.350² =
  28. 28.783² =
  29. 29.878² =
  30. 30.865² =
  31. 31.976² =
  32. 32.1011² =
  33. 33.425² =
  34. 34.686² =
  35. 35.215² =
  36. 36.552² =
  37. 37.261² =
  38. 38.310² =
  39. 39.665² =
  40. 40.605² =

Answer key

  1. 75076
  2. 102400
  3. 50625
  4. 75076
  5. 373321
  6. 61009
  7. 8892324
  8. 413449
  9. 222784
  10. 452929
  11. 88804
  12. 236196
  13. 27225
  14. 45369
  15. 237169
  16. 576081
  17. 12100
  18. 2247001
  19. 25921
  20. 27889
  21. 306916
  22. 535824
  23. 906304
  24. 487204
  25. 85264
  26. 107584
  27. 122500
  28. 613089
  29. 770884
  30. 748225
  31. 952576
  32. 1022121
  33. 180625
  34. 470596
  35. 46225
  36. 304704
  37. 68121
  38. 96100
  39. 442225
  40. 366025

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