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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 64 · 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 99 × 74 =
  2. 2.Digital root of 34798 =
  3. 3.Digital root of 24 × 17 =
  4. 4.Digital root of 96282 =
  5. 5.Digital root of 63684 =
  6. 6.Digital root of 51 × 96 =
  7. 7.Digital root of 13 × 13 =
  8. 8.Digital root of 72723 =
  9. 9.Digital root of 17291 =
  10. 10.Digital root of 90017 =
  11. 11.Digital root of 13 × 49 =
  12. 12.Digital root of 91 × 34 =
  13. 13.Digital root of 52952 =
  14. 14.Digital root of 49973 =
  15. 15.Digital root of 96069 =
  16. 16.Digital root of 26 × 46 =
  17. 17.Digital root of 61162 =
  18. 18.Digital root of 23 × 69 =
  19. 19.Digital root of 54712 =
  20. 20.Digital root of 92471 =
  21. 21.Digital root of 9623 =
  22. 22.Digital root of 49582 =
  23. 23.Digital root of 13340 =
  24. 24.Digital root of 21024 =
  25. 25.Digital root of 19 × 85 =
  26. 26.Digital root of 58 × 98 =
  27. 27.Digital root of 67 × 45 =
  28. 28.Digital root of 14729 =
  29. 29.Digital root of 89118 =
  30. 30.Digital root of 54 × 60 =
  31. 31.Digital root of 75417 =
  32. 32.Digital root of 76 × 99 =
  33. 33.Digital root of 74024 =
  34. 34.Digital root of 27904 =
  35. 35.Digital root of 54 × 69 =
  36. 36.Digital root of 84 × 33 =
  37. 37.Digital root of 18 × 97 =
  38. 38.Digital root of 57 × 55 =
  39. 39.Digital root of 64698 =
  40. 40.Digital root of 21627 =

Answer key

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

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