← 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 925 · 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. 1.576² =
  2. 2.702² =
  3. 3.384² =
  4. 4.989² =
  5. 5.4343² =
  6. 6.818² =
  7. 7.587² =
  8. 8.8501² =
  9. 9.3658² =
  10. 10.762² =
  11. 11.3557² =
  12. 12.138² =
  13. 13.113² =
  14. 14.2613² =
  15. 15.202² =
  16. 16.9666² =
  17. 17.349² =
  18. 18.8703² =
  19. 19.624² =
  20. 20.283² =
  21. 21.6113² =
  22. 22.536² =
  23. 23.8059² =
  24. 24.740² =
  25. 25.2303² =
  26. 26.771² =
  27. 27.126² =
  28. 28.968² =
  29. 29.2633² =
  30. 30.571² =
  31. 31.209² =
  32. 32.1564² =
  33. 33.306² =
  34. 34.2560² =
  35. 35.303² =
  36. 36.1236² =
  37. 37.537² =
  38. 38.807² =
  39. 39.286² =
  40. 40.981² =

Answer key

  1. 331776
  2. 492804
  3. 147456
  4. 978121
  5. 18861649
  6. 669124
  7. 344569
  8. 72267001
  9. 13380964
  10. 580644
  11. 12652249
  12. 19044
  13. 12769
  14. 6827769
  15. 40804
  16. 93431556
  17. 121801
  18. 75742209
  19. 389376
  20. 80089
  21. 37368769
  22. 287296
  23. 64947481
  24. 547600
  25. 5303809
  26. 594441
  27. 15876
  28. 937024
  29. 6932689
  30. 326041
  31. 43681
  32. 2446096
  33. 93636
  34. 6553600
  35. 91809
  36. 1527696
  37. 288369
  38. 651249
  39. 81796
  40. 962361

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