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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 269 · 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 17 × 83 =
  2. 2.Digital root of 80726 =
  3. 3.Digital root of 27272 =
  4. 4.Digital root of 45 × 46 =
  5. 5.Digital root of 95689 =
  6. 6.Digital root of 25 × 99 =
  7. 7.Digital root of 66 × 89 =
  8. 8.Digital root of 86786 =
  9. 9.Digital root of 86 × 16 =
  10. 10.Digital root of 8848 =
  11. 11.Digital root of 83 × 51 =
  12. 12.Digital root of 16565 =
  13. 13.Digital root of 13 × 58 =
  14. 14.Digital root of 85903 =
  15. 15.Digital root of 91 × 46 =
  16. 16.Digital root of 86 × 91 =
  17. 17.Digital root of 92 × 12 =
  18. 18.Digital root of 20 × 78 =
  19. 19.Digital root of 42076 =
  20. 20.Digital root of 59 × 81 =
  21. 21.Digital root of 18 × 16 =
  22. 22.Digital root of 35689 =
  23. 23.Digital root of 19098 =
  24. 24.Digital root of 6739 =
  25. 25.Digital root of 66 × 22 =
  26. 26.Digital root of 84697 =
  27. 27.Digital root of 88636 =
  28. 28.Digital root of 56893 =
  29. 29.Digital root of 28 × 80 =
  30. 30.Digital root of 45 × 13 =
  31. 31.Digital root of 49890 =
  32. 32.Digital root of 50412 =
  33. 33.Digital root of 87 × 26 =
  34. 34.Digital root of 48548 =
  35. 35.Digital root of 60574 =
  36. 36.Digital root of 78815 =
  37. 37.Digital root of 19 × 64 =
  38. 38.Digital root of 96 × 28 =
  39. 39.Digital root of 3781 =
  40. 40.Digital root of 2254 =

Answer key

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

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