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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 45 · 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 12876 =
  2. 2.Digital root of 66 × 29 =
  3. 3.Digital root of 87773 =
  4. 4.Digital root of 62 × 87 =
  5. 5.Digital root of 77 × 56 =
  6. 6.Digital root of 91 × 98 =
  7. 7.Digital root of 20 × 60 =
  8. 8.Digital root of 91202 =
  9. 9.Digital root of 41 × 90 =
  10. 10.Digital root of 59 × 30 =
  11. 11.Digital root of 38586 =
  12. 12.Digital root of 85 × 36 =
  13. 13.Digital root of 96086 =
  14. 14.Digital root of 18 × 62 =
  15. 15.Digital root of 52631 =
  16. 16.Digital root of 28 × 69 =
  17. 17.Digital root of 4657 =
  18. 18.Digital root of 47 × 38 =
  19. 19.Digital root of 34312 =
  20. 20.Digital root of 58945 =
  21. 21.Digital root of 11285 =
  22. 22.Digital root of 46 × 53 =
  23. 23.Digital root of 43430 =
  24. 24.Digital root of 79141 =
  25. 25.Digital root of 86 × 35 =
  26. 26.Digital root of 84065 =
  27. 27.Digital root of 24449 =
  28. 28.Digital root of 70184 =
  29. 29.Digital root of 90 × 64 =
  30. 30.Digital root of 78 × 35 =
  31. 31.Digital root of 91 × 25 =
  32. 32.Digital root of 16 × 75 =
  33. 33.Digital root of 8094 =
  34. 34.Digital root of 15397 =
  35. 35.Digital root of 80 × 18 =
  36. 36.Digital root of 18604 =
  37. 37.Digital root of 31 × 61 =
  38. 38.Digital root of 81263 =
  39. 39.Digital root of 66508 =
  40. 40.Digital root of 53977 =

Answer key

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

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