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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 301 · 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 15 × 37 =
  2. 2.Digital root of 69161 =
  3. 3.Digital root of 15752 =
  4. 4.Digital root of 76 × 91 =
  5. 5.Digital root of 26 × 54 =
  6. 6.Digital root of 23928 =
  7. 7.Digital root of 70725 =
  8. 8.Digital root of 17336 =
  9. 9.Digital root of 40890 =
  10. 10.Digital root of 23 × 99 =
  11. 11.Digital root of 34 × 29 =
  12. 12.Digital root of 12000 =
  13. 13.Digital root of 17941 =
  14. 14.Digital root of 29107 =
  15. 15.Digital root of 32 × 14 =
  16. 16.Digital root of 34 × 69 =
  17. 17.Digital root of 57170 =
  18. 18.Digital root of 55962 =
  19. 19.Digital root of 75 × 65 =
  20. 20.Digital root of 67 × 43 =
  21. 21.Digital root of 49113 =
  22. 22.Digital root of 85 × 76 =
  23. 23.Digital root of 43012 =
  24. 24.Digital root of 91448 =
  25. 25.Digital root of 19 × 74 =
  26. 26.Digital root of 19209 =
  27. 27.Digital root of 78710 =
  28. 28.Digital root of 12838 =
  29. 29.Digital root of 68 × 77 =
  30. 30.Digital root of 76248 =
  31. 31.Digital root of 97915 =
  32. 32.Digital root of 29 × 14 =
  33. 33.Digital root of 732 =
  34. 34.Digital root of 67534 =
  35. 35.Digital root of 29 × 97 =
  36. 36.Digital root of 76217 =
  37. 37.Digital root of 20 × 16 =
  38. 38.Digital root of 47383 =
  39. 39.Digital root of 15667 =
  40. 40.Digital root of 32697 =

Answer key

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

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