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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 666 · 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 7071 =
  2. 2.Digital root of 61 × 87 =
  3. 3.Digital root of 29 × 57 =
  4. 4.Digital root of 18 × 31 =
  5. 5.Digital root of 37 × 77 =
  6. 6.Digital root of 77 × 35 =
  7. 7.Digital root of 41 × 73 =
  8. 8.Digital root of 15876 =
  9. 9.Digital root of 18 × 63 =
  10. 10.Digital root of 58276 =
  11. 11.Digital root of 29587 =
  12. 12.Digital root of 15 × 17 =
  13. 13.Digital root of 15752 =
  14. 14.Digital root of 40 × 68 =
  15. 15.Digital root of 73 × 52 =
  16. 16.Digital root of 9515 =
  17. 17.Digital root of 18355 =
  18. 18.Digital root of 42 × 69 =
  19. 19.Digital root of 5039 =
  20. 20.Digital root of 57290 =
  21. 21.Digital root of 99076 =
  22. 22.Digital root of 40598 =
  23. 23.Digital root of 30 × 12 =
  24. 24.Digital root of 23 × 74 =
  25. 25.Digital root of 16727 =
  26. 26.Digital root of 83 × 46 =
  27. 27.Digital root of 98667 =
  28. 28.Digital root of 15117 =
  29. 29.Digital root of 21486 =
  30. 30.Digital root of 44 × 24 =
  31. 31.Digital root of 41853 =
  32. 32.Digital root of 40760 =
  33. 33.Digital root of 92 × 65 =
  34. 34.Digital root of 35 × 93 =
  35. 35.Digital root of 84498 =
  36. 36.Digital root of 92103 =
  37. 37.Digital root of 17000 =
  38. 38.Digital root of 27465 =
  39. 39.Digital root of 58568 =
  40. 40.Digital root of 31222 =

Answer key

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

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