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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 936 · 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 12835 =
  2. 2.Digital root of 14600 =
  3. 3.Digital root of 13734 =
  4. 4.Digital root of 25570 =
  5. 5.Digital root of 46230 =
  6. 6.Digital root of 39 × 82 =
  7. 7.Digital root of 69 × 58 =
  8. 8.Digital root of 62 × 75 =
  9. 9.Digital root of 43 × 29 =
  10. 10.Digital root of 76 × 33 =
  11. 11.Digital root of 43975 =
  12. 12.Digital root of 35496 =
  13. 13.Digital root of 47 × 27 =
  14. 14.Digital root of 66 × 50 =
  15. 15.Digital root of 12 × 14 =
  16. 16.Digital root of 7779 =
  17. 17.Digital root of 13 × 44 =
  18. 18.Digital root of 21 × 52 =
  19. 19.Digital root of 16 × 33 =
  20. 20.Digital root of 20 × 30 =
  21. 21.Digital root of 34 × 58 =
  22. 22.Digital root of 44752 =
  23. 23.Digital root of 12742 =
  24. 24.Digital root of 35 × 34 =
  25. 25.Digital root of 69 × 50 =
  26. 26.Digital root of 7331 =
  27. 27.Digital root of 19900 =
  28. 28.Digital root of 55 × 25 =
  29. 29.Digital root of 63 × 88 =
  30. 30.Digital root of 44831 =
  31. 31.Digital root of 61 × 16 =
  32. 32.Digital root of 16590 =
  33. 33.Digital root of 48060 =
  34. 34.Digital root of 88687 =
  35. 35.Digital root of 42 × 18 =
  36. 36.Digital root of 12129 =
  37. 37.Digital root of 78 × 42 =
  38. 38.Digital root of 60 × 95 =
  39. 39.Digital root of 17708 =
  40. 40.Digital root of 33111 =

Answer key

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

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