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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 37 · 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 22884 =
  2. 2.Digital root of 55979 =
  3. 3.Digital root of 48210 =
  4. 4.Digital root of 43 × 51 =
  5. 5.Digital root of 13266 =
  6. 6.Digital root of 13800 =
  7. 7.Digital root of 25490 =
  8. 8.Digital root of 39 × 17 =
  9. 9.Digital root of 77339 =
  10. 10.Digital root of 15875 =
  11. 11.Digital root of 16914 =
  12. 12.Digital root of 50 × 86 =
  13. 13.Digital root of 75 × 43 =
  14. 14.Digital root of 18 × 90 =
  15. 15.Digital root of 71577 =
  16. 16.Digital root of 41804 =
  17. 17.Digital root of 76238 =
  18. 18.Digital root of 93 × 19 =
  19. 19.Digital root of 29 × 16 =
  20. 20.Digital root of 21 × 12 =
  21. 21.Digital root of 34 × 79 =
  22. 22.Digital root of 38898 =
  23. 23.Digital root of 82 × 52 =
  24. 24.Digital root of 20 × 80 =
  25. 25.Digital root of 46750 =
  26. 26.Digital root of 78241 =
  27. 27.Digital root of 98272 =
  28. 28.Digital root of 26678 =
  29. 29.Digital root of 30385 =
  30. 30.Digital root of 89 × 31 =
  31. 31.Digital root of 58715 =
  32. 32.Digital root of 75 × 40 =
  33. 33.Digital root of 20 × 45 =
  34. 34.Digital root of 75 × 63 =
  35. 35.Digital root of 12373 =
  36. 36.Digital root of 78950 =
  37. 37.Digital root of 16 × 65 =
  38. 38.Digital root of 12 × 66 =
  39. 39.Digital root of 66 × 24 =
  40. 40.Digital root of 23259 =

Answer key

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

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