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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 503 · 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 28 × 98 =
  2. 2.Digital root of 14735 =
  3. 3.Digital root of 38 × 91 =
  4. 4.Digital root of 11601 =
  5. 5.Digital root of 51826 =
  6. 6.Digital root of 26 × 35 =
  7. 7.Digital root of 69 × 30 =
  8. 8.Digital root of 74 × 76 =
  9. 9.Digital root of 61255 =
  10. 10.Digital root of 82 × 67 =
  11. 11.Digital root of 84 × 46 =
  12. 12.Digital root of 21 × 60 =
  13. 13.Digital root of 67792 =
  14. 14.Digital root of 43 × 55 =
  15. 15.Digital root of 24 × 66 =
  16. 16.Digital root of 55605 =
  17. 17.Digital root of 41 × 43 =
  18. 18.Digital root of 17 × 58 =
  19. 19.Digital root of 64010 =
  20. 20.Digital root of 81 × 64 =
  21. 21.Digital root of 35 × 29 =
  22. 22.Digital root of 93277 =
  23. 23.Digital root of 9434 =
  24. 24.Digital root of 80042 =
  25. 25.Digital root of 10733 =
  26. 26.Digital root of 91139 =
  27. 27.Digital root of 22161 =
  28. 28.Digital root of 3116 =
  29. 29.Digital root of 85 × 20 =
  30. 30.Digital root of 89 × 21 =
  31. 31.Digital root of 76080 =
  32. 32.Digital root of 60 × 66 =
  33. 33.Digital root of 18799 =
  34. 34.Digital root of 23 × 76 =
  35. 35.Digital root of 53443 =
  36. 36.Digital root of 80 × 83 =
  37. 37.Digital root of 25 × 77 =
  38. 38.Digital root of 16241 =
  39. 39.Digital root of 41 × 85 =
  40. 40.Digital root of 23 × 78 =

Answer key

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

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