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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 558 · 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 32 × 48 =
  2. 2.Digital root of 76 × 58 =
  3. 3.Digital root of 59813 =
  4. 4.Digital root of 82 × 96 =
  5. 5.Digital root of 24866 =
  6. 6.Digital root of 67 × 79 =
  7. 7.Digital root of 3924 =
  8. 8.Digital root of 77 × 90 =
  9. 9.Digital root of 46 × 52 =
  10. 10.Digital root of 40503 =
  11. 11.Digital root of 92039 =
  12. 12.Digital root of 60989 =
  13. 13.Digital root of 92 × 54 =
  14. 14.Digital root of 98426 =
  15. 15.Digital root of 17 × 83 =
  16. 16.Digital root of 32123 =
  17. 17.Digital root of 75 × 35 =
  18. 18.Digital root of 70398 =
  19. 19.Digital root of 68 × 38 =
  20. 20.Digital root of 84 × 12 =
  21. 21.Digital root of 81 × 16 =
  22. 22.Digital root of 73 × 24 =
  23. 23.Digital root of 61653 =
  24. 24.Digital root of 37305 =
  25. 25.Digital root of 99 × 20 =
  26. 26.Digital root of 83 × 41 =
  27. 27.Digital root of 25 × 72 =
  28. 28.Digital root of 55 × 94 =
  29. 29.Digital root of 10012 =
  30. 30.Digital root of 17882 =
  31. 31.Digital root of 76 × 58 =
  32. 32.Digital root of 49 × 99 =
  33. 33.Digital root of 61 × 77 =
  34. 34.Digital root of 435 =
  35. 35.Digital root of 64895 =
  36. 36.Digital root of 8957 =
  37. 37.Digital root of 1700 =
  38. 38.Digital root of 60988 =
  39. 39.Digital root of 47315 =
  40. 40.Digital root of 7689 =

Answer key

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

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