← 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 921 · 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. 1.830² =
  2. 2.182² =
  3. 3.199² =
  4. 4.612² =
  5. 5.557² =
  6. 6.599² =
  7. 7.4671² =
  8. 8.2557² =
  9. 9.755² =
  10. 10.647² =
  11. 11.213² =
  12. 12.1513² =
  13. 13.2763² =
  14. 14.458² =
  15. 15.385² =
  16. 16.392² =
  17. 17.9729² =
  18. 18.124² =
  19. 19.178² =
  20. 20.9157² =
  21. 21.216² =
  22. 22.939² =
  23. 23.538² =
  24. 24.2481² =
  25. 25.678² =
  26. 26.508² =
  27. 27.922² =
  28. 28.183² =
  29. 29.547² =
  30. 30.4779² =
  31. 31.140² =
  32. 32.282² =
  33. 33.743² =
  34. 34.1126² =
  35. 35.8100² =
  36. 36.3343² =
  37. 37.887² =
  38. 38.8641² =
  39. 39.538² =
  40. 40.509² =

Answer key

  1. 688900
  2. 33124
  3. 39601
  4. 374544
  5. 310249
  6. 358801
  7. 21818241
  8. 6538249
  9. 570025
  10. 418609
  11. 45369
  12. 2289169
  13. 7634169
  14. 209764
  15. 148225
  16. 153664
  17. 94653441
  18. 15376
  19. 31684
  20. 83850649
  21. 46656
  22. 881721
  23. 289444
  24. 6155361
  25. 459684
  26. 258064
  27. 850084
  28. 33489
  29. 299209
  30. 22838841
  31. 19600
  32. 79524
  33. 552049
  34. 1267876
  35. 65610000
  36. 11175649
  37. 786769
  38. 74666881
  39. 289444
  40. 259081

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