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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 21 · 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 49249 =
  2. 2.Digital root of 67 × 42 =
  3. 3.Digital root of 36 × 39 =
  4. 4.Digital root of 53814 =
  5. 5.Digital root of 49 × 79 =
  6. 6.Digital root of 34 × 46 =
  7. 7.Digital root of 67 × 46 =
  8. 8.Digital root of 77 × 17 =
  9. 9.Digital root of 4579 =
  10. 10.Digital root of 50 × 63 =
  11. 11.Digital root of 58803 =
  12. 12.Digital root of 92 × 90 =
  13. 13.Digital root of 32 × 73 =
  14. 14.Digital root of 35453 =
  15. 15.Digital root of 64925 =
  16. 16.Digital root of 97278 =
  17. 17.Digital root of 64239 =
  18. 18.Digital root of 99973 =
  19. 19.Digital root of 38 × 19 =
  20. 20.Digital root of 98431 =
  21. 21.Digital root of 9785 =
  22. 22.Digital root of 519 =
  23. 23.Digital root of 83309 =
  24. 24.Digital root of 13507 =
  25. 25.Digital root of 12766 =
  26. 26.Digital root of 42 × 17 =
  27. 27.Digital root of 67 × 40 =
  28. 28.Digital root of 75961 =
  29. 29.Digital root of 95 × 33 =
  30. 30.Digital root of 8801 =
  31. 31.Digital root of 44038 =
  32. 32.Digital root of 82 × 17 =
  33. 33.Digital root of 59678 =
  34. 34.Digital root of 49 × 34 =
  35. 35.Digital root of 92 × 25 =
  36. 36.Digital root of 30 × 17 =
  37. 37.Digital root of 77953 =
  38. 38.Digital root of 34742 =
  39. 39.Digital root of 88 × 69 =
  40. 40.Digital root of 26207 =

Answer key

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

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