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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 69 · 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 74879 =
  2. 2.Digital root of 97 × 80 =
  3. 3.Digital root of 3994 =
  4. 4.Digital root of 97 × 48 =
  5. 5.Digital root of 62 × 88 =
  6. 6.Digital root of 63420 =
  7. 7.Digital root of 85678 =
  8. 8.Digital root of 91691 =
  9. 9.Digital root of 55394 =
  10. 10.Digital root of 20 × 34 =
  11. 11.Digital root of 34699 =
  12. 12.Digital root of 12 × 90 =
  13. 13.Digital root of 61262 =
  14. 14.Digital root of 26 × 40 =
  15. 15.Digital root of 86838 =
  16. 16.Digital root of 62536 =
  17. 17.Digital root of 12 × 46 =
  18. 18.Digital root of 87222 =
  19. 19.Digital root of 22115 =
  20. 20.Digital root of 80752 =
  21. 21.Digital root of 32359 =
  22. 22.Digital root of 12 × 17 =
  23. 23.Digital root of 21 × 99 =
  24. 24.Digital root of 77 × 91 =
  25. 25.Digital root of 39429 =
  26. 26.Digital root of 47235 =
  27. 27.Digital root of 26 × 75 =
  28. 28.Digital root of 36074 =
  29. 29.Digital root of 26978 =
  30. 30.Digital root of 51 × 24 =
  31. 31.Digital root of 48 × 57 =
  32. 32.Digital root of 26 × 29 =
  33. 33.Digital root of 14 × 15 =
  34. 34.Digital root of 12 × 17 =
  35. 35.Digital root of 90105 =
  36. 36.Digital root of 13742 =
  37. 37.Digital root of 40 × 57 =
  38. 38.Digital root of 13 × 20 =
  39. 39.Digital root of 61 × 27 =
  40. 40.Digital root of 34 × 48 =

Answer key

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

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