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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 324 · 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 31 × 39 =
  2. 2.Digital root of 86635 =
  3. 3.Digital root of 55695 =
  4. 4.Digital root of 62747 =
  5. 5.Digital root of 25097 =
  6. 6.Digital root of 39183 =
  7. 7.Digital root of 91571 =
  8. 8.Digital root of 95 × 27 =
  9. 9.Digital root of 49484 =
  10. 10.Digital root of 22002 =
  11. 11.Digital root of 84730 =
  12. 12.Digital root of 14714 =
  13. 13.Digital root of 34 × 60 =
  14. 14.Digital root of 21 × 90 =
  15. 15.Digital root of 59185 =
  16. 16.Digital root of 89 × 90 =
  17. 17.Digital root of 35 × 35 =
  18. 18.Digital root of 67 × 53 =
  19. 19.Digital root of 87 × 13 =
  20. 20.Digital root of 61 × 72 =
  21. 21.Digital root of 73 × 97 =
  22. 22.Digital root of 12 × 82 =
  23. 23.Digital root of 99 × 78 =
  24. 24.Digital root of 20076 =
  25. 25.Digital root of 78 × 95 =
  26. 26.Digital root of 12941 =
  27. 27.Digital root of 84 × 71 =
  28. 28.Digital root of 93941 =
  29. 29.Digital root of 52 × 27 =
  30. 30.Digital root of 43480 =
  31. 31.Digital root of 17 × 84 =
  32. 32.Digital root of 17409 =
  33. 33.Digital root of 36 × 20 =
  34. 34.Digital root of 22715 =
  35. 35.Digital root of 16 × 92 =
  36. 36.Digital root of 79 × 30 =
  37. 37.Digital root of 36 × 28 =
  38. 38.Digital root of 57909 =
  39. 39.Digital root of 14 × 33 =
  40. 40.Digital root of 93018 =

Answer key

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

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