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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 323 · 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 23460 =
  2. 2.Digital root of 63927 =
  3. 3.Digital root of 37 × 75 =
  4. 4.Digital root of 42731 =
  5. 5.Digital root of 20 × 41 =
  6. 6.Digital root of 54 × 72 =
  7. 7.Digital root of 94488 =
  8. 8.Digital root of 16 × 57 =
  9. 9.Digital root of 19 × 89 =
  10. 10.Digital root of 67912 =
  11. 11.Digital root of 4170 =
  12. 12.Digital root of 71 × 17 =
  13. 13.Digital root of 4440 =
  14. 14.Digital root of 77380 =
  15. 15.Digital root of 35 × 77 =
  16. 16.Digital root of 4404 =
  17. 17.Digital root of 16302 =
  18. 18.Digital root of 14102 =
  19. 19.Digital root of 58985 =
  20. 20.Digital root of 62820 =
  21. 21.Digital root of 54842 =
  22. 22.Digital root of 30 × 43 =
  23. 23.Digital root of 22275 =
  24. 24.Digital root of 54204 =
  25. 25.Digital root of 1945 =
  26. 26.Digital root of 16460 =
  27. 27.Digital root of 89 × 35 =
  28. 28.Digital root of 91 × 90 =
  29. 29.Digital root of 99496 =
  30. 30.Digital root of 83 × 80 =
  31. 31.Digital root of 15 × 37 =
  32. 32.Digital root of 64569 =
  33. 33.Digital root of 88869 =
  34. 34.Digital root of 19238 =
  35. 35.Digital root of 1724 =
  36. 36.Digital root of 81 × 25 =
  37. 37.Digital root of 93239 =
  38. 38.Digital root of 55 × 79 =
  39. 39.Digital root of 19 × 79 =
  40. 40.Digital root of 6740 =

Answer key

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

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