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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 44 · 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 99064 =
  2. 2.Digital root of 70 × 12 =
  3. 3.Digital root of 26177 =
  4. 4.Digital root of 28246 =
  5. 5.Digital root of 98 × 68 =
  6. 6.Digital root of 15992 =
  7. 7.Digital root of 52 × 84 =
  8. 8.Digital root of 79 × 23 =
  9. 9.Digital root of 81358 =
  10. 10.Digital root of 83 × 62 =
  11. 11.Digital root of 52884 =
  12. 12.Digital root of 15220 =
  13. 13.Digital root of 31629 =
  14. 14.Digital root of 12 × 60 =
  15. 15.Digital root of 10201 =
  16. 16.Digital root of 36 × 82 =
  17. 17.Digital root of 21 × 38 =
  18. 18.Digital root of 90 × 90 =
  19. 19.Digital root of 67373 =
  20. 20.Digital root of 48 × 63 =
  21. 21.Digital root of 36325 =
  22. 22.Digital root of 87 × 90 =
  23. 23.Digital root of 85785 =
  24. 24.Digital root of 77789 =
  25. 25.Digital root of 53 × 25 =
  26. 26.Digital root of 35 × 87 =
  27. 27.Digital root of 35615 =
  28. 28.Digital root of 95 × 22 =
  29. 29.Digital root of 48 × 75 =
  30. 30.Digital root of 97 × 18 =
  31. 31.Digital root of 22964 =
  32. 32.Digital root of 89 × 14 =
  33. 33.Digital root of 44858 =
  34. 34.Digital root of 20694 =
  35. 35.Digital root of 36778 =
  36. 36.Digital root of 32572 =
  37. 37.Digital root of 3802 =
  38. 38.Digital root of 59 × 99 =
  39. 39.Digital root of 64 × 98 =
  40. 40.Digital root of 76341 =

Answer key

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

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