← 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 452 · 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. 1.896² =
  2. 2.828² =
  3. 3.408² =
  4. 4.192² =
  5. 5.397² =
  6. 6.431² =
  7. 7.9625² =
  8. 8.412² =
  9. 9.905² =
  10. 10.8830² =
  11. 11.819² =
  12. 12.219² =
  13. 13.507² =
  14. 14.850² =
  15. 15.620² =
  16. 16.139² =
  17. 17.163² =
  18. 18.915² =
  19. 19.138² =
  20. 20.542² =
  21. 21.976² =
  22. 22.913² =
  23. 23.942² =
  24. 24.6714² =
  25. 25.599² =
  26. 26.706² =
  27. 27.148² =
  28. 28.2817² =
  29. 29.505² =
  30. 30.7337² =
  31. 31.1339² =
  32. 32.274² =
  33. 33.294² =
  34. 34.287² =
  35. 35.669² =
  36. 36.638² =
  37. 37.567² =
  38. 38.862² =
  39. 39.319² =
  40. 40.705² =

Answer key

  1. 802816
  2. 685584
  3. 166464
  4. 36864
  5. 157609
  6. 185761
  7. 92640625
  8. 169744
  9. 819025
  10. 77968900
  11. 670761
  12. 47961
  13. 257049
  14. 722500
  15. 384400
  16. 19321
  17. 26569
  18. 837225
  19. 19044
  20. 293764
  21. 952576
  22. 833569
  23. 887364
  24. 45077796
  25. 358801
  26. 498436
  27. 21904
  28. 7935489
  29. 255025
  30. 53831569
  31. 1792921
  32. 75076
  33. 86436
  34. 82369
  35. 447561
  36. 407044
  37. 321489
  38. 743044
  39. 101761
  40. 497025

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