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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 491 · 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 80809 =
  2. 2.Digital root of 40248 =
  3. 3.Digital root of 74500 =
  4. 4.Digital root of 30673 =
  5. 5.Digital root of 46463 =
  6. 6.Digital root of 63 × 86 =
  7. 7.Digital root of 22764 =
  8. 8.Digital root of 73918 =
  9. 9.Digital root of 73025 =
  10. 10.Digital root of 37406 =
  11. 11.Digital root of 41826 =
  12. 12.Digital root of 86966 =
  13. 13.Digital root of 27179 =
  14. 14.Digital root of 56 × 34 =
  15. 15.Digital root of 14 × 17 =
  16. 16.Digital root of 20 × 38 =
  17. 17.Digital root of 33865 =
  18. 18.Digital root of 3694 =
  19. 19.Digital root of 43 × 91 =
  20. 20.Digital root of 26 × 97 =
  21. 21.Digital root of 34692 =
  22. 22.Digital root of 22917 =
  23. 23.Digital root of 18411 =
  24. 24.Digital root of 95625 =
  25. 25.Digital root of 9744 =
  26. 26.Digital root of 87665 =
  27. 27.Digital root of 52000 =
  28. 28.Digital root of 10149 =
  29. 29.Digital root of 80452 =
  30. 30.Digital root of 18 × 48 =
  31. 31.Digital root of 34 × 56 =
  32. 32.Digital root of 89633 =
  33. 33.Digital root of 39590 =
  34. 34.Digital root of 96989 =
  35. 35.Digital root of 3066 =
  36. 36.Digital root of 99 × 34 =
  37. 37.Digital root of 13361 =
  38. 38.Digital root of 95678 =
  39. 39.Digital root of 66 × 40 =
  40. 40.Digital root of 77584 =

Answer key

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

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