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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 442 · 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 18 × 17 =
  2. 2.Digital root of 59945 =
  3. 3.Digital root of 57063 =
  4. 4.Digital root of 60969 =
  5. 5.Digital root of 50 × 33 =
  6. 6.Digital root of 69331 =
  7. 7.Digital root of 73999 =
  8. 8.Digital root of 76348 =
  9. 9.Digital root of 32 × 21 =
  10. 10.Digital root of 92 × 56 =
  11. 11.Digital root of 62 × 26 =
  12. 12.Digital root of 19095 =
  13. 13.Digital root of 26172 =
  14. 14.Digital root of 29 × 87 =
  15. 15.Digital root of 54427 =
  16. 16.Digital root of 21 × 80 =
  17. 17.Digital root of 92848 =
  18. 18.Digital root of 73110 =
  19. 19.Digital root of 87621 =
  20. 20.Digital root of 41 × 97 =
  21. 21.Digital root of 15 × 33 =
  22. 22.Digital root of 17 × 46 =
  23. 23.Digital root of 62272 =
  24. 24.Digital root of 27 × 44 =
  25. 25.Digital root of 14587 =
  26. 26.Digital root of 18668 =
  27. 27.Digital root of 31 × 90 =
  28. 28.Digital root of 70525 =
  29. 29.Digital root of 82654 =
  30. 30.Digital root of 7023 =
  31. 31.Digital root of 46198 =
  32. 32.Digital root of 55 × 26 =
  33. 33.Digital root of 44 × 96 =
  34. 34.Digital root of 60020 =
  35. 35.Digital root of 34353 =
  36. 36.Digital root of 75 × 40 =
  37. 37.Digital root of 58 × 75 =
  38. 38.Digital root of 33 × 20 =
  39. 39.Digital root of 46153 =
  40. 40.Digital root of 75077 =

Answer key

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

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