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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 405 · 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 37745 =
  2. 2.Digital root of 2367 =
  3. 3.Digital root of 32 × 43 =
  4. 4.Digital root of 34194 =
  5. 5.Digital root of 29 × 41 =
  6. 6.Digital root of 35380 =
  7. 7.Digital root of 70899 =
  8. 8.Digital root of 45292 =
  9. 9.Digital root of 71 × 16 =
  10. 10.Digital root of 65944 =
  11. 11.Digital root of 34 × 17 =
  12. 12.Digital root of 32000 =
  13. 13.Digital root of 28611 =
  14. 14.Digital root of 32142 =
  15. 15.Digital root of 19336 =
  16. 16.Digital root of 79772 =
  17. 17.Digital root of 61128 =
  18. 18.Digital root of 97 × 27 =
  19. 19.Digital root of 48310 =
  20. 20.Digital root of 20543 =
  21. 21.Digital root of 30768 =
  22. 22.Digital root of 27161 =
  23. 23.Digital root of 74396 =
  24. 24.Digital root of 97 × 56 =
  25. 25.Digital root of 13077 =
  26. 26.Digital root of 92 × 91 =
  27. 27.Digital root of 70 × 14 =
  28. 28.Digital root of 70787 =
  29. 29.Digital root of 90 × 13 =
  30. 30.Digital root of 72154 =
  31. 31.Digital root of 40 × 60 =
  32. 32.Digital root of 47541 =
  33. 33.Digital root of 49926 =
  34. 34.Digital root of 45192 =
  35. 35.Digital root of 12126 =
  36. 36.Digital root of 43974 =
  37. 37.Digital root of 52285 =
  38. 38.Digital root of 82789 =
  39. 39.Digital root of 43882 =
  40. 40.Digital root of 92705 =

Answer key

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

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