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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 798 · 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 30432 =
  2. 2.Digital root of 3506 =
  3. 3.Digital root of 83497 =
  4. 4.Digital root of 22410 =
  5. 5.Digital root of 56203 =
  6. 6.Digital root of 23026 =
  7. 7.Digital root of 98831 =
  8. 8.Digital root of 49264 =
  9. 9.Digital root of 17122 =
  10. 10.Digital root of 24 × 37 =
  11. 11.Digital root of 59999 =
  12. 12.Digital root of 13851 =
  13. 13.Digital root of 6889 =
  14. 14.Digital root of 19810 =
  15. 15.Digital root of 54425 =
  16. 16.Digital root of 63238 =
  17. 17.Digital root of 18 × 79 =
  18. 18.Digital root of 50 × 24 =
  19. 19.Digital root of 67 × 23 =
  20. 20.Digital root of 14833 =
  21. 21.Digital root of 83246 =
  22. 22.Digital root of 89 × 78 =
  23. 23.Digital root of 65 × 21 =
  24. 24.Digital root of 80065 =
  25. 25.Digital root of 25 × 66 =
  26. 26.Digital root of 45383 =
  27. 27.Digital root of 37750 =
  28. 28.Digital root of 37 × 38 =
  29. 29.Digital root of 8824 =
  30. 30.Digital root of 20 × 91 =
  31. 31.Digital root of 55908 =
  32. 32.Digital root of 14687 =
  33. 33.Digital root of 8794 =
  34. 34.Digital root of 17516 =
  35. 35.Digital root of 66915 =
  36. 36.Digital root of 70847 =
  37. 37.Digital root of 19183 =
  38. 38.Digital root of 77 × 85 =
  39. 39.Digital root of 97 × 31 =
  40. 40.Digital root of 86044 =

Answer key

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

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