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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 994 · 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 47 × 89 =
  2. 2.Digital root of 21124 =
  3. 3.Digital root of 48 × 76 =
  4. 4.Digital root of 44 × 47 =
  5. 5.Digital root of 66787 =
  6. 6.Digital root of 92112 =
  7. 7.Digital root of 75 × 37 =
  8. 8.Digital root of 95 × 61 =
  9. 9.Digital root of 2325 =
  10. 10.Digital root of 41429 =
  11. 11.Digital root of 35 × 32 =
  12. 12.Digital root of 93 × 74 =
  13. 13.Digital root of 71992 =
  14. 14.Digital root of 66931 =
  15. 15.Digital root of 14 × 12 =
  16. 16.Digital root of 90 × 46 =
  17. 17.Digital root of 33447 =
  18. 18.Digital root of 97 × 69 =
  19. 19.Digital root of 58772 =
  20. 20.Digital root of 97 × 67 =
  21. 21.Digital root of 90 × 65 =
  22. 22.Digital root of 95 × 67 =
  23. 23.Digital root of 11082 =
  24. 24.Digital root of 87 × 47 =
  25. 25.Digital root of 60 × 62 =
  26. 26.Digital root of 4194 =
  27. 27.Digital root of 94987 =
  28. 28.Digital root of 32 × 43 =
  29. 29.Digital root of 93756 =
  30. 30.Digital root of 11827 =
  31. 31.Digital root of 49 × 35 =
  32. 32.Digital root of 76 × 71 =
  33. 33.Digital root of 21 × 18 =
  34. 34.Digital root of 87 × 77 =
  35. 35.Digital root of 17901 =
  36. 36.Digital root of 39830 =
  37. 37.Digital root of 18 × 66 =
  38. 38.Digital root of 5950 =
  39. 39.Digital root of 2014 =
  40. 40.Digital root of 60 × 91 =

Answer key

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

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