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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 248 · 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 29 × 63 =
  2. 2.Digital root of 10663 =
  3. 3.Digital root of 27 × 21 =
  4. 4.Digital root of 16147 =
  5. 5.Digital root of 52670 =
  6. 6.Digital root of 42445 =
  7. 7.Digital root of 84 × 60 =
  8. 8.Digital root of 20 × 35 =
  9. 9.Digital root of 96724 =
  10. 10.Digital root of 60 × 48 =
  11. 11.Digital root of 38 × 93 =
  12. 12.Digital root of 33 × 93 =
  13. 13.Digital root of 27746 =
  14. 14.Digital root of 20302 =
  15. 15.Digital root of 30376 =
  16. 16.Digital root of 69 × 12 =
  17. 17.Digital root of 30 × 40 =
  18. 18.Digital root of 4828 =
  19. 19.Digital root of 9486 =
  20. 20.Digital root of 66268 =
  21. 21.Digital root of 2621 =
  22. 22.Digital root of 45694 =
  23. 23.Digital root of 9580 =
  24. 24.Digital root of 69799 =
  25. 25.Digital root of 86563 =
  26. 26.Digital root of 5826 =
  27. 27.Digital root of 39798 =
  28. 28.Digital root of 92866 =
  29. 29.Digital root of 17 × 82 =
  30. 30.Digital root of 36 × 70 =
  31. 31.Digital root of 13465 =
  32. 32.Digital root of 19332 =
  33. 33.Digital root of 84 × 65 =
  34. 34.Digital root of 2629 =
  35. 35.Digital root of 15484 =
  36. 36.Digital root of 22 × 60 =
  37. 37.Digital root of 52 × 27 =
  38. 38.Digital root of 66953 =
  39. 39.Digital root of 49 × 84 =
  40. 40.Digital root of 87419 =

Answer key

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

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