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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 183 · 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 81 × 96 =
  2. 2.Digital root of 13723 =
  3. 3.Digital root of 30 × 92 =
  4. 4.Digital root of 43 × 12 =
  5. 5.Digital root of 42721 =
  6. 6.Digital root of 36339 =
  7. 7.Digital root of 28 × 26 =
  8. 8.Digital root of 91070 =
  9. 9.Digital root of 15627 =
  10. 10.Digital root of 36932 =
  11. 11.Digital root of 37616 =
  12. 12.Digital root of 93 × 99 =
  13. 13.Digital root of 46750 =
  14. 14.Digital root of 53482 =
  15. 15.Digital root of 81 × 90 =
  16. 16.Digital root of 60 × 47 =
  17. 17.Digital root of 38 × 68 =
  18. 18.Digital root of 19422 =
  19. 19.Digital root of 81322 =
  20. 20.Digital root of 70 × 56 =
  21. 21.Digital root of 78107 =
  22. 22.Digital root of 31 × 16 =
  23. 23.Digital root of 66963 =
  24. 24.Digital root of 71115 =
  25. 25.Digital root of 87561 =
  26. 26.Digital root of 63 × 57 =
  27. 27.Digital root of 54866 =
  28. 28.Digital root of 69875 =
  29. 29.Digital root of 31 × 41 =
  30. 30.Digital root of 72532 =
  31. 31.Digital root of 80842 =
  32. 32.Digital root of 19 × 95 =
  33. 33.Digital root of 83 × 49 =
  34. 34.Digital root of 45543 =
  35. 35.Digital root of 7426 =
  36. 36.Digital root of 34721 =
  37. 37.Digital root of 65694 =
  38. 38.Digital root of 24 × 81 =
  39. 39.Digital root of 29402 =
  40. 40.Digital root of 82488 =

Answer key

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

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