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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 126 · 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 12 × 31 =
  2. 2.Digital root of 56637 =
  3. 3.Digital root of 3960 =
  4. 4.Digital root of 30 × 63 =
  5. 5.Digital root of 82534 =
  6. 6.Digital root of 10960 =
  7. 7.Digital root of 72 × 26 =
  8. 8.Digital root of 82304 =
  9. 9.Digital root of 96661 =
  10. 10.Digital root of 39 × 55 =
  11. 11.Digital root of 71438 =
  12. 12.Digital root of 16 × 76 =
  13. 13.Digital root of 712 =
  14. 14.Digital root of 81 × 37 =
  15. 15.Digital root of 15 × 80 =
  16. 16.Digital root of 18383 =
  17. 17.Digital root of 45425 =
  18. 18.Digital root of 72771 =
  19. 19.Digital root of 47372 =
  20. 20.Digital root of 76 × 63 =
  21. 21.Digital root of 49950 =
  22. 22.Digital root of 8326 =
  23. 23.Digital root of 25 × 36 =
  24. 24.Digital root of 20 × 47 =
  25. 25.Digital root of 5054 =
  26. 26.Digital root of 63749 =
  27. 27.Digital root of 50 × 57 =
  28. 28.Digital root of 50555 =
  29. 29.Digital root of 29795 =
  30. 30.Digital root of 6001 =
  31. 31.Digital root of 62681 =
  32. 32.Digital root of 7952 =
  33. 33.Digital root of 69799 =
  34. 34.Digital root of 76 × 65 =
  35. 35.Digital root of 27 × 93 =
  36. 36.Digital root of 32 × 60 =
  37. 37.Digital root of 19 × 20 =
  38. 38.Digital root of 12 × 26 =
  39. 39.Digital root of 46 × 25 =
  40. 40.Digital root of 30714 =

Answer key

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

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