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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 95 · 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 75780 =
  2. 2.Digital root of 77 × 59 =
  3. 3.Digital root of 42386 =
  4. 4.Digital root of 66180 =
  5. 5.Digital root of 21873 =
  6. 6.Digital root of 53 × 43 =
  7. 7.Digital root of 88250 =
  8. 8.Digital root of 22487 =
  9. 9.Digital root of 16860 =
  10. 10.Digital root of 57103 =
  11. 11.Digital root of 83 × 43 =
  12. 12.Digital root of 53 × 81 =
  13. 13.Digital root of 69 × 98 =
  14. 14.Digital root of 58 × 37 =
  15. 15.Digital root of 30577 =
  16. 16.Digital root of 57180 =
  17. 17.Digital root of 53460 =
  18. 18.Digital root of 12 × 67 =
  19. 19.Digital root of 39 × 23 =
  20. 20.Digital root of 76543 =
  21. 21.Digital root of 46 × 83 =
  22. 22.Digital root of 33 × 81 =
  23. 23.Digital root of 78578 =
  24. 24.Digital root of 96833 =
  25. 25.Digital root of 3447 =
  26. 26.Digital root of 61013 =
  27. 27.Digital root of 12843 =
  28. 28.Digital root of 17 × 42 =
  29. 29.Digital root of 43 × 71 =
  30. 30.Digital root of 85 × 97 =
  31. 31.Digital root of 11656 =
  32. 32.Digital root of 25382 =
  33. 33.Digital root of 69 × 93 =
  34. 34.Digital root of 63618 =
  35. 35.Digital root of 71118 =
  36. 36.Digital root of 90374 =
  37. 37.Digital root of 89490 =
  38. 38.Digital root of 47 × 50 =
  39. 39.Digital root of 71 × 26 =
  40. 40.Digital root of 53 × 27 =

Answer key

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

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