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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 762 · 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 12187 =
  2. 2.Digital root of 99965 =
  3. 3.Digital root of 39741 =
  4. 4.Digital root of 11719 =
  5. 5.Digital root of 57 × 12 =
  6. 6.Digital root of 55185 =
  7. 7.Digital root of 69579 =
  8. 8.Digital root of 48 × 43 =
  9. 9.Digital root of 94163 =
  10. 10.Digital root of 51720 =
  11. 11.Digital root of 4849 =
  12. 12.Digital root of 37824 =
  13. 13.Digital root of 42544 =
  14. 14.Digital root of 92 × 37 =
  15. 15.Digital root of 26 × 61 =
  16. 16.Digital root of 12740 =
  17. 17.Digital root of 94 × 38 =
  18. 18.Digital root of 38 × 44 =
  19. 19.Digital root of 29 × 91 =
  20. 20.Digital root of 74 × 24 =
  21. 21.Digital root of 76702 =
  22. 22.Digital root of 83 × 79 =
  23. 23.Digital root of 90108 =
  24. 24.Digital root of 33 × 36 =
  25. 25.Digital root of 98 × 72 =
  26. 26.Digital root of 46126 =
  27. 27.Digital root of 56790 =
  28. 28.Digital root of 23 × 93 =
  29. 29.Digital root of 22 × 49 =
  30. 30.Digital root of 56 × 28 =
  31. 31.Digital root of 32 × 44 =
  32. 32.Digital root of 48065 =
  33. 33.Digital root of 25 × 20 =
  34. 34.Digital root of 25855 =
  35. 35.Digital root of 91567 =
  36. 36.Digital root of 54148 =
  37. 37.Digital root of 64 × 33 =
  38. 38.Digital root of 60282 =
  39. 39.Digital root of 89809 =
  40. 40.Digital root of 16073 =

Answer key

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

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