← 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 520 · 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. 1.6423² =
  2. 2.5689² =
  3. 3.931² =
  4. 4.344² =
  5. 5.741² =
  6. 6.7550² =
  7. 7.287² =
  8. 8.356² =
  9. 9.257² =
  10. 10.469² =
  11. 11.407² =
  12. 12.731² =
  13. 13.3140² =
  14. 14.6688² =
  15. 15.533² =
  16. 16.9186² =
  17. 17.2957² =
  18. 18.472² =
  19. 19.101² =
  20. 20.781² =
  21. 21.2271² =
  22. 22.476² =
  23. 23.7253² =
  24. 24.264² =
  25. 25.779² =
  26. 26.622² =
  27. 27.697² =
  28. 28.267² =
  29. 29.315² =
  30. 30.406² =
  31. 31.714² =
  32. 32.528² =
  33. 33.8648² =
  34. 34.9613² =
  35. 35.680² =
  36. 36.9937² =
  37. 37.992² =
  38. 38.862² =
  39. 39.1226² =
  40. 40.7610² =

Answer key

  1. 41254929
  2. 32364721
  3. 866761
  4. 118336
  5. 549081
  6. 57002500
  7. 82369
  8. 126736
  9. 66049
  10. 219961
  11. 165649
  12. 534361
  13. 9859600
  14. 44729344
  15. 284089
  16. 84382596
  17. 8743849
  18. 222784
  19. 10201
  20. 609961
  21. 5157441
  22. 226576
  23. 52606009
  24. 69696
  25. 606841
  26. 386884
  27. 485809
  28. 71289
  29. 99225
  30. 164836
  31. 509796
  32. 278784
  33. 74787904
  34. 92409769
  35. 462400
  36. 98743969
  37. 984064
  38. 743044
  39. 1503076
  40. 57912100

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