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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 86 · 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 34874 =
  2. 2.Digital root of 14855 =
  3. 3.Digital root of 48699 =
  4. 4.Digital root of 96 × 74 =
  5. 5.Digital root of 33 × 28 =
  6. 6.Digital root of 22 × 19 =
  7. 7.Digital root of 80 × 32 =
  8. 8.Digital root of 9902 =
  9. 9.Digital root of 19253 =
  10. 10.Digital root of 22932 =
  11. 11.Digital root of 59686 =
  12. 12.Digital root of 81 × 99 =
  13. 13.Digital root of 51713 =
  14. 14.Digital root of 81 × 52 =
  15. 15.Digital root of 977 =
  16. 16.Digital root of 40 × 29 =
  17. 17.Digital root of 34661 =
  18. 18.Digital root of 62376 =
  19. 19.Digital root of 53966 =
  20. 20.Digital root of 26 × 25 =
  21. 21.Digital root of 36 × 49 =
  22. 22.Digital root of 73 × 69 =
  23. 23.Digital root of 92016 =
  24. 24.Digital root of 48 × 46 =
  25. 25.Digital root of 93209 =
  26. 26.Digital root of 39506 =
  27. 27.Digital root of 29617 =
  28. 28.Digital root of 15362 =
  29. 29.Digital root of 67624 =
  30. 30.Digital root of 42345 =
  31. 31.Digital root of 39 × 52 =
  32. 32.Digital root of 69 × 96 =
  33. 33.Digital root of 75 × 28 =
  34. 34.Digital root of 19381 =
  35. 35.Digital root of 68 × 97 =
  36. 36.Digital root of 95027 =
  37. 37.Digital root of 99 × 21 =
  38. 38.Digital root of 35109 =
  39. 39.Digital root of 57242 =
  40. 40.Digital root of 73 × 37 =

Answer key

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

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