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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 167 · 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 78617 =
  2. 2.Digital root of 93496 =
  3. 3.Digital root of 417 =
  4. 4.Digital root of 56 × 25 =
  5. 5.Digital root of 51325 =
  6. 6.Digital root of 2227 =
  7. 7.Digital root of 33011 =
  8. 8.Digital root of 80787 =
  9. 9.Digital root of 34084 =
  10. 10.Digital root of 15 × 93 =
  11. 11.Digital root of 60 × 79 =
  12. 12.Digital root of 34460 =
  13. 13.Digital root of 70173 =
  14. 14.Digital root of 61 × 43 =
  15. 15.Digital root of 53 × 76 =
  16. 16.Digital root of 22 × 78 =
  17. 17.Digital root of 5291 =
  18. 18.Digital root of 43872 =
  19. 19.Digital root of 89922 =
  20. 20.Digital root of 406 =
  21. 21.Digital root of 47430 =
  22. 22.Digital root of 14 × 53 =
  23. 23.Digital root of 49 × 26 =
  24. 24.Digital root of 25 × 50 =
  25. 25.Digital root of 29520 =
  26. 26.Digital root of 93935 =
  27. 27.Digital root of 34411 =
  28. 28.Digital root of 69 × 34 =
  29. 29.Digital root of 94025 =
  30. 30.Digital root of 87783 =
  31. 31.Digital root of 15 × 68 =
  32. 32.Digital root of 89215 =
  33. 33.Digital root of 5598 =
  34. 34.Digital root of 18 × 87 =
  35. 35.Digital root of 32335 =
  36. 36.Digital root of 23 × 96 =
  37. 37.Digital root of 46637 =
  38. 38.Digital root of 20574 =
  39. 39.Digital root of 96 × 68 =
  40. 40.Digital root of 71 × 18 =

Answer key

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

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