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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 689 · 40 sums
TalentJR

The trick (Gunita Samuccayah): Add the digits of a number; keep adding until one digit is left (a total of 9 stays 9). For a product, multiply the digital roots of the two numbers and take the digital root of that. If your answer’s digital root is different, the answer is wrong.

NameDateTime takenScore ___ / 40
  1. 1.Digital root of 46007 =
  2. 2.Digital root of 81242 =
  3. 3.Digital root of 74950 =
  4. 4.Digital root of 81 × 81 =
  5. 5.Digital root of 55839 =
  6. 6.Digital root of 25257 =
  7. 7.Digital root of 50620 =
  8. 8.Digital root of 80 × 94 =
  9. 9.Digital root of 92 × 64 =
  10. 10.Digital root of 52 × 35 =
  11. 11.Digital root of 8454 =
  12. 12.Digital root of 95256 =
  13. 13.Digital root of 55012 =
  14. 14.Digital root of 32262 =
  15. 15.Digital root of 88 × 46 =
  16. 16.Digital root of 3476 =
  17. 17.Digital root of 50674 =
  18. 18.Digital root of 68 × 31 =
  19. 19.Digital root of 10349 =
  20. 20.Digital root of 26 × 64 =
  21. 21.Digital root of 77 × 82 =
  22. 22.Digital root of 55941 =
  23. 23.Digital root of 3675 =
  24. 24.Digital root of 70 × 27 =
  25. 25.Digital root of 24821 =
  26. 26.Digital root of 45 × 58 =
  27. 27.Digital root of 54645 =
  28. 28.Digital root of 41 × 31 =
  29. 29.Digital root of 64909 =
  30. 30.Digital root of 38849 =
  31. 31.Digital root of 78394 =
  32. 32.Digital root of 94334 =
  33. 33.Digital root of 80824 =
  34. 34.Digital root of 1782 =
  35. 35.Digital root of 32 × 73 =
  36. 36.Digital root of 14835 =
  37. 37.Digital root of 58 × 30 =
  38. 38.Digital root of 55754 =
  39. 39.Digital root of 42672 =
  40. 40.Digital root of 12406 =

Answer key

  1. 8
  2. 8
  3. 7
  4. 9
  5. 3
  6. 3
  7. 4
  8. 5
  9. 2
  10. 2
  11. 3
  12. 9
  13. 4
  14. 6
  15. 7
  16. 2
  17. 4
  18. 2
  19. 8
  20. 8
  21. 5
  22. 6
  23. 3
  24. 9
  25. 8
  26. 9
  27. 6
  28. 2
  29. 1
  30. 5
  31. 4
  32. 5
  33. 4
  34. 9
  35. 5
  36. 3
  37. 3
  38. 8
  39. 3
  40. 4

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