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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 971 · 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. 1.735² =
  2. 2.1725² =
  3. 3.292² =
  4. 4.527² =
  5. 5.966² =
  6. 6.571² =
  7. 7.125² =
  8. 8.641² =
  9. 9.249² =
  10. 10.844² =
  11. 11.393² =
  12. 12.496² =
  13. 13.1031² =
  14. 14.552² =
  15. 15.544² =
  16. 16.471² =
  17. 17.754² =
  18. 18.802² =
  19. 19.3010² =
  20. 20.539² =
  21. 21.407² =
  22. 22.3717² =
  23. 23.1016² =
  24. 24.1404² =
  25. 25.386² =
  26. 26.344² =
  27. 27.184² =
  28. 28.4036² =
  29. 29.924² =
  30. 30.2210² =
  31. 31.2763² =
  32. 32.696² =
  33. 33.1694² =
  34. 34.582² =
  35. 35.805² =
  36. 36.732² =
  37. 37.314² =
  38. 38.907² =
  39. 39.970² =
  40. 40.353² =

Answer key

  1. 540225
  2. 2975625
  3. 85264
  4. 277729
  5. 933156
  6. 326041
  7. 15625
  8. 410881
  9. 62001
  10. 712336
  11. 154449
  12. 246016
  13. 1062961
  14. 304704
  15. 295936
  16. 221841
  17. 568516
  18. 643204
  19. 9060100
  20. 290521
  21. 165649
  22. 13816089
  23. 1032256
  24. 1971216
  25. 148996
  26. 118336
  27. 33856
  28. 16289296
  29. 853776
  30. 4884100
  31. 7634169
  32. 484416
  33. 2869636
  34. 338724
  35. 648025
  36. 535824
  37. 98596
  38. 822649
  39. 940900
  40. 124609

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