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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 288 · 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 46963 =
  2. 2.Digital root of 33479 =
  3. 3.Digital root of 63 × 81 =
  4. 4.Digital root of 1768 =
  5. 5.Digital root of 60 × 70 =
  6. 6.Digital root of 85984 =
  7. 7.Digital root of 66509 =
  8. 8.Digital root of 55 × 77 =
  9. 9.Digital root of 63 × 59 =
  10. 10.Digital root of 57 × 65 =
  11. 11.Digital root of 85748 =
  12. 12.Digital root of 28139 =
  13. 13.Digital root of 99902 =
  14. 14.Digital root of 55236 =
  15. 15.Digital root of 75935 =
  16. 16.Digital root of 41136 =
  17. 17.Digital root of 25434 =
  18. 18.Digital root of 4978 =
  19. 19.Digital root of 12 × 67 =
  20. 20.Digital root of 18809 =
  21. 21.Digital root of 11812 =
  22. 22.Digital root of 7313 =
  23. 23.Digital root of 22691 =
  24. 24.Digital root of 86891 =
  25. 25.Digital root of 62 × 64 =
  26. 26.Digital root of 86 × 29 =
  27. 27.Digital root of 94 × 30 =
  28. 28.Digital root of 14153 =
  29. 29.Digital root of 85 × 17 =
  30. 30.Digital root of 50342 =
  31. 31.Digital root of 37 × 53 =
  32. 32.Digital root of 52 × 26 =
  33. 33.Digital root of 95225 =
  34. 34.Digital root of 79422 =
  35. 35.Digital root of 33 × 92 =
  36. 36.Digital root of 85728 =
  37. 37.Digital root of 27 × 87 =
  38. 38.Digital root of 14566 =
  39. 39.Digital root of 25 × 88 =
  40. 40.Digital root of 37039 =

Answer key

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

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