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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 681 · 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 7581 =
  2. 2.Digital root of 82 × 35 =
  3. 3.Digital root of 1048 =
  4. 4.Digital root of 26649 =
  5. 5.Digital root of 23561 =
  6. 6.Digital root of 40775 =
  7. 7.Digital root of 56 × 86 =
  8. 8.Digital root of 27 × 57 =
  9. 9.Digital root of 45384 =
  10. 10.Digital root of 341 =
  11. 11.Digital root of 29944 =
  12. 12.Digital root of 38 × 40 =
  13. 13.Digital root of 32 × 41 =
  14. 14.Digital root of 72213 =
  15. 15.Digital root of 10921 =
  16. 16.Digital root of 94232 =
  17. 17.Digital root of 88 × 13 =
  18. 18.Digital root of 29123 =
  19. 19.Digital root of 26 × 49 =
  20. 20.Digital root of 53170 =
  21. 21.Digital root of 54811 =
  22. 22.Digital root of 7096 =
  23. 23.Digital root of 41315 =
  24. 24.Digital root of 21 × 28 =
  25. 25.Digital root of 65 × 66 =
  26. 26.Digital root of 18949 =
  27. 27.Digital root of 14039 =
  28. 28.Digital root of 46 × 93 =
  29. 29.Digital root of 85382 =
  30. 30.Digital root of 27 × 92 =
  31. 31.Digital root of 26568 =
  32. 32.Digital root of 40053 =
  33. 33.Digital root of 57 × 97 =
  34. 34.Digital root of 20552 =
  35. 35.Digital root of 3957 =
  36. 36.Digital root of 42 × 22 =
  37. 37.Digital root of 77710 =
  38. 38.Digital root of 26 × 80 =
  39. 39.Digital root of 35654 =
  40. 40.Digital root of 45719 =

Answer key

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

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