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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 564 · 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 42797 =
  2. 2.Digital root of 77 × 37 =
  3. 3.Digital root of 51825 =
  4. 4.Digital root of 88776 =
  5. 5.Digital root of 17802 =
  6. 6.Digital root of 83425 =
  7. 7.Digital root of 61940 =
  8. 8.Digital root of 1689 =
  9. 9.Digital root of 49 × 83 =
  10. 10.Digital root of 26 × 29 =
  11. 11.Digital root of 65 × 79 =
  12. 12.Digital root of 30965 =
  13. 13.Digital root of 10556 =
  14. 14.Digital root of 80 × 76 =
  15. 15.Digital root of 34517 =
  16. 16.Digital root of 15925 =
  17. 17.Digital root of 17 × 38 =
  18. 18.Digital root of 1108 =
  19. 19.Digital root of 79 × 26 =
  20. 20.Digital root of 81950 =
  21. 21.Digital root of 91106 =
  22. 22.Digital root of 82 × 61 =
  23. 23.Digital root of 60055 =
  24. 24.Digital root of 18277 =
  25. 25.Digital root of 64294 =
  26. 26.Digital root of 16276 =
  27. 27.Digital root of 23903 =
  28. 28.Digital root of 50 × 29 =
  29. 29.Digital root of 25 × 49 =
  30. 30.Digital root of 8232 =
  31. 31.Digital root of 23834 =
  32. 32.Digital root of 5959 =
  33. 33.Digital root of 88 × 35 =
  34. 34.Digital root of 81 × 19 =
  35. 35.Digital root of 34 × 51 =
  36. 36.Digital root of 93 × 31 =
  37. 37.Digital root of 26 × 65 =
  38. 38.Digital root of 77 × 60 =
  39. 39.Digital root of 87 × 58 =
  40. 40.Digital root of 22 × 48 =

Answer key

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

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