← 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 320 · 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. 1.122² =
  2. 2.504² =
  3. 3.259² =
  4. 4.380² =
  5. 5.248² =
  6. 6.529² =
  7. 7.182² =
  8. 8.1081² =
  9. 9.233² =
  10. 10.946² =
  11. 11.906² =
  12. 12.108² =
  13. 13.9899² =
  14. 14.714² =
  15. 15.2490² =
  16. 16.1254² =
  17. 17.471² =
  18. 18.376² =
  19. 19.642² =
  20. 20.3193² =
  21. 21.1931² =
  22. 22.201² =
  23. 23.666² =
  24. 24.918² =
  25. 25.2887² =
  26. 26.606² =
  27. 27.784² =
  28. 28.3672² =
  29. 29.2557² =
  30. 30.507² =
  31. 31.122² =
  32. 32.1651² =
  33. 33.1488² =
  34. 34.365² =
  35. 35.332² =
  36. 36.214² =
  37. 37.2090² =
  38. 38.306² =
  39. 39.8380² =
  40. 40.966² =

Answer key

  1. 14884
  2. 254016
  3. 67081
  4. 144400
  5. 61504
  6. 279841
  7. 33124
  8. 1168561
  9. 54289
  10. 894916
  11. 820836
  12. 11664
  13. 97990201
  14. 509796
  15. 6200100
  16. 1572516
  17. 221841
  18. 141376
  19. 412164
  20. 10195249
  21. 3728761
  22. 40401
  23. 443556
  24. 842724
  25. 8334769
  26. 367236
  27. 614656
  28. 13483584
  29. 6538249
  30. 257049
  31. 14884
  32. 2725801
  33. 2214144
  34. 133225
  35. 110224
  36. 45796
  37. 4368100
  38. 93636
  39. 70224400
  40. 933156

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