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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 822 · 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 96403 =
  2. 2.Digital root of 67 × 18 =
  3. 3.Digital root of 14539 =
  4. 4.Digital root of 92560 =
  5. 5.Digital root of 67623 =
  6. 6.Digital root of 44314 =
  7. 7.Digital root of 75708 =
  8. 8.Digital root of 86 × 43 =
  9. 9.Digital root of 22 × 78 =
  10. 10.Digital root of 29 × 36 =
  11. 11.Digital root of 89 × 97 =
  12. 12.Digital root of 96487 =
  13. 13.Digital root of 54552 =
  14. 14.Digital root of 74619 =
  15. 15.Digital root of 75626 =
  16. 16.Digital root of 55 × 49 =
  17. 17.Digital root of 40 × 65 =
  18. 18.Digital root of 87 × 43 =
  19. 19.Digital root of 8734 =
  20. 20.Digital root of 27551 =
  21. 21.Digital root of 13707 =
  22. 22.Digital root of 68 × 90 =
  23. 23.Digital root of 77 × 18 =
  24. 24.Digital root of 67382 =
  25. 25.Digital root of 7893 =
  26. 26.Digital root of 53 × 38 =
  27. 27.Digital root of 45018 =
  28. 28.Digital root of 62 × 15 =
  29. 29.Digital root of 35356 =
  30. 30.Digital root of 77 × 67 =
  31. 31.Digital root of 38912 =
  32. 32.Digital root of 60461 =
  33. 33.Digital root of 92484 =
  34. 34.Digital root of 43132 =
  35. 35.Digital root of 8546 =
  36. 36.Digital root of 67223 =
  37. 37.Digital root of 78912 =
  38. 38.Digital root of 43 × 91 =
  39. 39.Digital root of 69 × 37 =
  40. 40.Digital root of 25726 =

Answer key

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

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