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Squares of 3 Digit Numbers Worksheet

Vedic maths trick 26: Squares of 3- and 4-digit numbers · Set 650 · 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. 1.504² =
  2. 2.729² =
  3. 3.170² =
  4. 4.574² =
  5. 5.543² =
  6. 6.4345² =
  7. 7.557² =
  8. 8.211² =
  9. 9.544² =
  10. 10.852² =
  11. 11.439² =
  12. 12.912² =
  13. 13.510² =
  14. 14.308² =
  15. 15.839² =
  16. 16.843² =
  17. 17.299² =
  18. 18.278² =
  19. 19.6791² =
  20. 20.755² =
  21. 21.286² =
  22. 22.505² =
  23. 23.449² =
  24. 24.4641² =
  25. 25.3685² =
  26. 26.7396² =
  27. 27.1569² =
  28. 28.350² =
  29. 29.435² =
  30. 30.609² =
  31. 31.7025² =
  32. 32.580² =
  33. 33.182² =
  34. 34.751² =
  35. 35.377² =
  36. 36.747² =
  37. 37.119² =
  38. 38.592² =
  39. 39.9554² =
  40. 40.175² =

Answer key

  1. 254016
  2. 531441
  3. 28900
  4. 329476
  5. 294849
  6. 18879025
  7. 310249
  8. 44521
  9. 295936
  10. 725904
  11. 192721
  12. 831744
  13. 260100
  14. 94864
  15. 703921
  16. 710649
  17. 89401
  18. 77284
  19. 46117681
  20. 570025
  21. 81796
  22. 255025
  23. 201601
  24. 21538881
  25. 13579225
  26. 54700816
  27. 2461761
  28. 122500
  29. 189225
  30. 370881
  31. 49350625
  32. 336400
  33. 33124
  34. 564001
  35. 142129
  36. 558009
  37. 14161
  38. 350464
  39. 91278916
  40. 30625

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