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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 216 · 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 88275 =
  2. 2.Digital root of 85841 =
  3. 3.Digital root of 237 =
  4. 4.Digital root of 53 × 26 =
  5. 5.Digital root of 76566 =
  6. 6.Digital root of 26 × 21 =
  7. 7.Digital root of 4192 =
  8. 8.Digital root of 12 × 20 =
  9. 9.Digital root of 13523 =
  10. 10.Digital root of 71 × 40 =
  11. 11.Digital root of 52 × 23 =
  12. 12.Digital root of 62929 =
  13. 13.Digital root of 31 × 14 =
  14. 14.Digital root of 52699 =
  15. 15.Digital root of 24079 =
  16. 16.Digital root of 65751 =
  17. 17.Digital root of 58006 =
  18. 18.Digital root of 61009 =
  19. 19.Digital root of 42104 =
  20. 20.Digital root of 40 × 50 =
  21. 21.Digital root of 15359 =
  22. 22.Digital root of 12110 =
  23. 23.Digital root of 95821 =
  24. 24.Digital root of 35 × 99 =
  25. 25.Digital root of 11931 =
  26. 26.Digital root of 91838 =
  27. 27.Digital root of 49 × 78 =
  28. 28.Digital root of 30 × 88 =
  29. 29.Digital root of 53 × 89 =
  30. 30.Digital root of 90357 =
  31. 31.Digital root of 96 × 93 =
  32. 32.Digital root of 81 × 86 =
  33. 33.Digital root of 61 × 95 =
  34. 34.Digital root of 35046 =
  35. 35.Digital root of 72788 =
  36. 36.Digital root of 32594 =
  37. 37.Digital root of 13749 =
  38. 38.Digital root of 24414 =
  39. 39.Digital root of 86 × 21 =
  40. 40.Digital root of 84119 =

Answer key

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

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