← 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 612 · 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. 1.1419² =
  2. 2.702² =
  3. 3.487² =
  4. 4.7905² =
  5. 5.317² =
  6. 6.657² =
  7. 7.923² =
  8. 8.728² =
  9. 9.828² =
  10. 10.2092² =
  11. 11.9370² =
  12. 12.326² =
  13. 13.413² =
  14. 14.138² =
  15. 15.1951² =
  16. 16.558² =
  17. 17.644² =
  18. 18.5275² =
  19. 19.346² =
  20. 20.803² =
  21. 21.640² =
  22. 22.515² =
  23. 23.514² =
  24. 24.137² =
  25. 25.135² =
  26. 26.837² =
  27. 27.804² =
  28. 28.678² =
  29. 29.532² =
  30. 30.974² =
  31. 31.573² =
  32. 32.8832² =
  33. 33.115² =
  34. 34.149² =
  35. 35.446² =
  36. 36.426² =
  37. 37.289² =
  38. 38.569² =
  39. 39.495² =
  40. 40.5567² =

Answer key

  1. 2013561
  2. 492804
  3. 237169
  4. 62489025
  5. 100489
  6. 431649
  7. 851929
  8. 529984
  9. 685584
  10. 4376464
  11. 87796900
  12. 106276
  13. 170569
  14. 19044
  15. 3806401
  16. 311364
  17. 414736
  18. 27825625
  19. 119716
  20. 644809
  21. 409600
  22. 265225
  23. 264196
  24. 18769
  25. 18225
  26. 700569
  27. 646416
  28. 459684
  29. 283024
  30. 948676
  31. 328329
  32. 78004224
  33. 13225
  34. 22201
  35. 198916
  36. 181476
  37. 83521
  38. 323761
  39. 245025
  40. 30991489

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