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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 469 · 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 36912 =
  2. 2.Digital root of 24 × 60 =
  3. 3.Digital root of 70 × 44 =
  4. 4.Digital root of 76460 =
  5. 5.Digital root of 45 × 28 =
  6. 6.Digital root of 87691 =
  7. 7.Digital root of 56 × 31 =
  8. 8.Digital root of 89 × 82 =
  9. 9.Digital root of 44741 =
  10. 10.Digital root of 25 × 79 =
  11. 11.Digital root of 50008 =
  12. 12.Digital root of 43912 =
  13. 13.Digital root of 47 × 62 =
  14. 14.Digital root of 10757 =
  15. 15.Digital root of 69375 =
  16. 16.Digital root of 28 × 19 =
  17. 17.Digital root of 60167 =
  18. 18.Digital root of 2567 =
  19. 19.Digital root of 20 × 67 =
  20. 20.Digital root of 41 × 27 =
  21. 21.Digital root of 54687 =
  22. 22.Digital root of 49 × 57 =
  23. 23.Digital root of 65 × 76 =
  24. 24.Digital root of 7283 =
  25. 25.Digital root of 60746 =
  26. 26.Digital root of 21 × 79 =
  27. 27.Digital root of 71390 =
  28. 28.Digital root of 39318 =
  29. 29.Digital root of 46246 =
  30. 30.Digital root of 98 × 60 =
  31. 31.Digital root of 46 × 21 =
  32. 32.Digital root of 27235 =
  33. 33.Digital root of 89 × 57 =
  34. 34.Digital root of 23331 =
  35. 35.Digital root of 97334 =
  36. 36.Digital root of 77 × 53 =
  37. 37.Digital root of 14119 =
  38. 38.Digital root of 941 =
  39. 39.Digital root of 20914 =
  40. 40.Digital root of 87747 =

Answer key

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

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