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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 66 · 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 78192 =
  2. 2.Digital root of 43 × 30 =
  3. 3.Digital root of 70029 =
  4. 4.Digital root of 17 × 33 =
  5. 5.Digital root of 27 × 79 =
  6. 6.Digital root of 24 × 83 =
  7. 7.Digital root of 27 × 45 =
  8. 8.Digital root of 53363 =
  9. 9.Digital root of 58595 =
  10. 10.Digital root of 54 × 60 =
  11. 11.Digital root of 31 × 46 =
  12. 12.Digital root of 16009 =
  13. 13.Digital root of 73027 =
  14. 14.Digital root of 38 × 98 =
  15. 15.Digital root of 11192 =
  16. 16.Digital root of 49466 =
  17. 17.Digital root of 40311 =
  18. 18.Digital root of 35 × 42 =
  19. 19.Digital root of 45365 =
  20. 20.Digital root of 32918 =
  21. 21.Digital root of 91 × 72 =
  22. 22.Digital root of 81771 =
  23. 23.Digital root of 47795 =
  24. 24.Digital root of 19 × 97 =
  25. 25.Digital root of 34 × 39 =
  26. 26.Digital root of 60990 =
  27. 27.Digital root of 5096 =
  28. 28.Digital root of 342 =
  29. 29.Digital root of 17 × 67 =
  30. 30.Digital root of 49403 =
  31. 31.Digital root of 79 × 51 =
  32. 32.Digital root of 28067 =
  33. 33.Digital root of 24 × 36 =
  34. 34.Digital root of 60 × 17 =
  35. 35.Digital root of 89 × 41 =
  36. 36.Digital root of 64649 =
  37. 37.Digital root of 31535 =
  38. 38.Digital root of 82837 =
  39. 39.Digital root of 14770 =
  40. 40.Digital root of 15953 =

Answer key

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

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