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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 466 · 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 13 × 78 =
  2. 2.Digital root of 78494 =
  3. 3.Digital root of 60 × 21 =
  4. 4.Digital root of 76 × 52 =
  5. 5.Digital root of 59956 =
  6. 6.Digital root of 75 × 40 =
  7. 7.Digital root of 22865 =
  8. 8.Digital root of 24696 =
  9. 9.Digital root of 5515 =
  10. 10.Digital root of 19 × 13 =
  11. 11.Digital root of 11624 =
  12. 12.Digital root of 83 × 98 =
  13. 13.Digital root of 16 × 29 =
  14. 14.Digital root of 78976 =
  15. 15.Digital root of 71 × 59 =
  16. 16.Digital root of 13315 =
  17. 17.Digital root of 86 × 99 =
  18. 18.Digital root of 9723 =
  19. 19.Digital root of 71 × 71 =
  20. 20.Digital root of 61 × 16 =
  21. 21.Digital root of 68 × 57 =
  22. 22.Digital root of 34322 =
  23. 23.Digital root of 57 × 86 =
  24. 24.Digital root of 53184 =
  25. 25.Digital root of 72542 =
  26. 26.Digital root of 53 × 81 =
  27. 27.Digital root of 91 × 53 =
  28. 28.Digital root of 81 × 50 =
  29. 29.Digital root of 85189 =
  30. 30.Digital root of 94285 =
  31. 31.Digital root of 32410 =
  32. 32.Digital root of 45538 =
  33. 33.Digital root of 26 × 35 =
  34. 34.Digital root of 9551 =
  35. 35.Digital root of 64 × 68 =
  36. 36.Digital root of 96866 =
  37. 37.Digital root of 30 × 35 =
  38. 38.Digital root of 83764 =
  39. 39.Digital root of 99591 =
  40. 40.Digital root of 45667 =

Answer key

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

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