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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 526 · 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 50105 =
  2. 2.Digital root of 46 × 91 =
  3. 3.Digital root of 55983 =
  4. 4.Digital root of 22 × 86 =
  5. 5.Digital root of 44 × 33 =
  6. 6.Digital root of 58 × 90 =
  7. 7.Digital root of 66 × 27 =
  8. 8.Digital root of 24516 =
  9. 9.Digital root of 69073 =
  10. 10.Digital root of 58 × 35 =
  11. 11.Digital root of 24 × 75 =
  12. 12.Digital root of 21037 =
  13. 13.Digital root of 90 × 16 =
  14. 14.Digital root of 38762 =
  15. 15.Digital root of 504 =
  16. 16.Digital root of 13 × 24 =
  17. 17.Digital root of 80292 =
  18. 18.Digital root of 25 × 77 =
  19. 19.Digital root of 96 × 31 =
  20. 20.Digital root of 23 × 81 =
  21. 21.Digital root of 60 × 85 =
  22. 22.Digital root of 4127 =
  23. 23.Digital root of 29 × 92 =
  24. 24.Digital root of 4577 =
  25. 25.Digital root of 12255 =
  26. 26.Digital root of 65777 =
  27. 27.Digital root of 98361 =
  28. 28.Digital root of 26703 =
  29. 29.Digital root of 81789 =
  30. 30.Digital root of 32 × 12 =
  31. 31.Digital root of 93725 =
  32. 32.Digital root of 35 × 97 =
  33. 33.Digital root of 33 × 49 =
  34. 34.Digital root of 65273 =
  35. 35.Digital root of 97 × 78 =
  36. 36.Digital root of 89454 =
  37. 37.Digital root of 39 × 98 =
  38. 38.Digital root of 21217 =
  39. 39.Digital root of 98 × 83 =
  40. 40.Digital root of 86154 =

Answer key

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

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