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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 893 · 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. 1.164² =
  2. 2.429² =
  3. 3.910² =
  4. 4.529² =
  5. 5.375² =
  6. 6.760² =
  7. 7.230² =
  8. 8.364² =
  9. 9.285² =
  10. 10.969² =
  11. 11.313² =
  12. 12.995² =
  13. 13.960² =
  14. 14.295² =
  15. 15.4689² =
  16. 16.316² =
  17. 17.848² =
  18. 18.3225² =
  19. 19.8890² =
  20. 20.108² =
  21. 21.533² =
  22. 22.548² =
  23. 23.392² =
  24. 24.892² =
  25. 25.142² =
  26. 26.490² =
  27. 27.245² =
  28. 28.960² =
  29. 29.485² =
  30. 30.6740² =
  31. 31.859² =
  32. 32.1908² =
  33. 33.474² =
  34. 34.968² =
  35. 35.5884² =
  36. 36.7864² =
  37. 37.306² =
  38. 38.9319² =
  39. 39.219² =
  40. 40.1135² =

Answer key

  1. 26896
  2. 184041
  3. 828100
  4. 279841
  5. 140625
  6. 577600
  7. 52900
  8. 132496
  9. 81225
  10. 938961
  11. 97969
  12. 990025
  13. 921600
  14. 87025
  15. 21986721
  16. 99856
  17. 719104
  18. 10400625
  19. 79032100
  20. 11664
  21. 284089
  22. 300304
  23. 153664
  24. 795664
  25. 20164
  26. 240100
  27. 60025
  28. 921600
  29. 235225
  30. 45427600
  31. 737881
  32. 3640464
  33. 224676
  34. 937024
  35. 34621456
  36. 61842496
  37. 93636
  38. 86843761
  39. 47961
  40. 1288225

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