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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 302 · 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 27028 =
  2. 2.Digital root of 65 × 29 =
  3. 3.Digital root of 57 × 13 =
  4. 4.Digital root of 994 =
  5. 5.Digital root of 43 × 12 =
  6. 6.Digital root of 49105 =
  7. 7.Digital root of 83 × 35 =
  8. 8.Digital root of 45 × 83 =
  9. 9.Digital root of 19941 =
  10. 10.Digital root of 2593 =
  11. 11.Digital root of 97 × 97 =
  12. 12.Digital root of 99 × 14 =
  13. 13.Digital root of 73226 =
  14. 14.Digital root of 97466 =
  15. 15.Digital root of 82022 =
  16. 16.Digital root of 95 × 61 =
  17. 17.Digital root of 17 × 59 =
  18. 18.Digital root of 11119 =
  19. 19.Digital root of 69 × 84 =
  20. 20.Digital root of 48760 =
  21. 21.Digital root of 87320 =
  22. 22.Digital root of 28 × 60 =
  23. 23.Digital root of 27355 =
  24. 24.Digital root of 20 × 31 =
  25. 25.Digital root of 22502 =
  26. 26.Digital root of 35 × 13 =
  27. 27.Digital root of 66 × 86 =
  28. 28.Digital root of 76480 =
  29. 29.Digital root of 85 × 60 =
  30. 30.Digital root of 5843 =
  31. 31.Digital root of 97277 =
  32. 32.Digital root of 26 × 30 =
  33. 33.Digital root of 50786 =
  34. 34.Digital root of 95 × 63 =
  35. 35.Digital root of 86487 =
  36. 36.Digital root of 60 × 18 =
  37. 37.Digital root of 27 × 75 =
  38. 38.Digital root of 83 × 29 =
  39. 39.Digital root of 36 × 79 =
  40. 40.Digital root of 17615 =

Answer key

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

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