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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 935 · 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 13746 =
  2. 2.Digital root of 49255 =
  3. 3.Digital root of 13634 =
  4. 4.Digital root of 67 × 45 =
  5. 5.Digital root of 42087 =
  6. 6.Digital root of 25 × 28 =
  7. 7.Digital root of 23 × 47 =
  8. 8.Digital root of 49310 =
  9. 9.Digital root of 44 × 82 =
  10. 10.Digital root of 162 =
  11. 11.Digital root of 78 × 14 =
  12. 12.Digital root of 40 × 29 =
  13. 13.Digital root of 40 × 51 =
  14. 14.Digital root of 94 × 13 =
  15. 15.Digital root of 99852 =
  16. 16.Digital root of 19121 =
  17. 17.Digital root of 34508 =
  18. 18.Digital root of 21 × 65 =
  19. 19.Digital root of 37 × 93 =
  20. 20.Digital root of 21 × 45 =
  21. 21.Digital root of 16 × 41 =
  22. 22.Digital root of 38 × 93 =
  23. 23.Digital root of 60 × 56 =
  24. 24.Digital root of 55 × 46 =
  25. 25.Digital root of 80 × 54 =
  26. 26.Digital root of 26780 =
  27. 27.Digital root of 54 × 26 =
  28. 28.Digital root of 27216 =
  29. 29.Digital root of 47330 =
  30. 30.Digital root of 30315 =
  31. 31.Digital root of 27843 =
  32. 32.Digital root of 72774 =
  33. 33.Digital root of 52 × 72 =
  34. 34.Digital root of 49 × 19 =
  35. 35.Digital root of 8104 =
  36. 36.Digital root of 24724 =
  37. 37.Digital root of 66742 =
  38. 38.Digital root of 65 × 19 =
  39. 39.Digital root of 57285 =
  40. 40.Digital root of 71444 =

Answer key

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

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