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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 141 · 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 9662 =
  2. 2.Digital root of 29973 =
  3. 3.Digital root of 97 × 32 =
  4. 4.Digital root of 96074 =
  5. 5.Digital root of 91605 =
  6. 6.Digital root of 33092 =
  7. 7.Digital root of 461 =
  8. 8.Digital root of 81 × 71 =
  9. 9.Digital root of 62104 =
  10. 10.Digital root of 97 × 62 =
  11. 11.Digital root of 26397 =
  12. 12.Digital root of 27 × 45 =
  13. 13.Digital root of 36012 =
  14. 14.Digital root of 42 × 15 =
  15. 15.Digital root of 53499 =
  16. 16.Digital root of 18873 =
  17. 17.Digital root of 49628 =
  18. 18.Digital root of 34 × 68 =
  19. 19.Digital root of 72 × 56 =
  20. 20.Digital root of 35 × 75 =
  21. 21.Digital root of 81492 =
  22. 22.Digital root of 22 × 28 =
  23. 23.Digital root of 95 × 20 =
  24. 24.Digital root of 43 × 56 =
  25. 25.Digital root of 26553 =
  26. 26.Digital root of 66 × 72 =
  27. 27.Digital root of 60 × 95 =
  28. 28.Digital root of 72 × 72 =
  29. 29.Digital root of 57 × 82 =
  30. 30.Digital root of 27 × 59 =
  31. 31.Digital root of 23360 =
  32. 32.Digital root of 31519 =
  33. 33.Digital root of 15 × 23 =
  34. 34.Digital root of 38 × 99 =
  35. 35.Digital root of 13 × 79 =
  36. 36.Digital root of 61292 =
  37. 37.Digital root of 10043 =
  38. 38.Digital root of 81 × 28 =
  39. 39.Digital root of 82918 =
  40. 40.Digital root of 34 × 62 =

Answer key

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

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