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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 604 · 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 75780 =
  2. 2.Digital root of 68503 =
  3. 3.Digital root of 53821 =
  4. 4.Digital root of 3489 =
  5. 5.Digital root of 4400 =
  6. 6.Digital root of 38020 =
  7. 7.Digital root of 66507 =
  8. 8.Digital root of 63 × 97 =
  9. 9.Digital root of 84376 =
  10. 10.Digital root of 16821 =
  11. 11.Digital root of 22509 =
  12. 12.Digital root of 67 × 17 =
  13. 13.Digital root of 64142 =
  14. 14.Digital root of 85 × 13 =
  15. 15.Digital root of 53982 =
  16. 16.Digital root of 60597 =
  17. 17.Digital root of 43 × 89 =
  18. 18.Digital root of 85 × 64 =
  19. 19.Digital root of 77704 =
  20. 20.Digital root of 47 × 14 =
  21. 21.Digital root of 1435 =
  22. 22.Digital root of 81205 =
  23. 23.Digital root of 25114 =
  24. 24.Digital root of 31 × 80 =
  25. 25.Digital root of 95796 =
  26. 26.Digital root of 13 × 41 =
  27. 27.Digital root of 7943 =
  28. 28.Digital root of 75849 =
  29. 29.Digital root of 71300 =
  30. 30.Digital root of 10385 =
  31. 31.Digital root of 6153 =
  32. 32.Digital root of 84 × 34 =
  33. 33.Digital root of 51575 =
  34. 34.Digital root of 74197 =
  35. 35.Digital root of 24 × 68 =
  36. 36.Digital root of 39213 =
  37. 37.Digital root of 61551 =
  38. 38.Digital root of 12 × 44 =
  39. 39.Digital root of 61 × 45 =
  40. 40.Digital root of 61660 =

Answer key

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

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