← 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 513 · 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. 1.305² =
  2. 2.8051² =
  3. 3.5256² =
  4. 4.212² =
  5. 5.8064² =
  6. 6.6960² =
  7. 7.8700² =
  8. 8.8242² =
  9. 9.664² =
  10. 10.4598² =
  11. 11.742² =
  12. 12.493² =
  13. 13.462² =
  14. 14.137² =
  15. 15.573² =
  16. 16.263² =
  17. 17.176² =
  18. 18.710² =
  19. 19.330² =
  20. 20.1198² =
  21. 21.6870² =
  22. 22.2708² =
  23. 23.236² =
  24. 24.982² =
  25. 25.830² =
  26. 26.5300² =
  27. 27.937² =
  28. 28.6186² =
  29. 29.2562² =
  30. 30.925² =
  31. 31.447² =
  32. 32.738² =
  33. 33.5942² =
  34. 34.306² =
  35. 35.198² =
  36. 36.382² =
  37. 37.1382² =
  38. 38.754² =
  39. 39.294² =
  40. 40.842² =

Answer key

  1. 93025
  2. 64818601
  3. 27625536
  4. 44944
  5. 65028096
  6. 48441600
  7. 75690000
  8. 67930564
  9. 440896
  10. 21141604
  11. 550564
  12. 243049
  13. 213444
  14. 18769
  15. 328329
  16. 69169
  17. 30976
  18. 504100
  19. 108900
  20. 1435204
  21. 47196900
  22. 7333264
  23. 55696
  24. 964324
  25. 688900
  26. 28090000
  27. 877969
  28. 38266596
  29. 6563844
  30. 855625
  31. 199809
  32. 544644
  33. 35307364
  34. 93636
  35. 39204
  36. 145924
  37. 1909924
  38. 568516
  39. 86436
  40. 708964

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