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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 824 · 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 36353 =
  2. 2.Digital root of 18 × 87 =
  3. 3.Digital root of 23277 =
  4. 4.Digital root of 45 × 83 =
  5. 5.Digital root of 19328 =
  6. 6.Digital root of 93776 =
  7. 7.Digital root of 44 × 44 =
  8. 8.Digital root of 14393 =
  9. 9.Digital root of 57480 =
  10. 10.Digital root of 84 × 90 =
  11. 11.Digital root of 10803 =
  12. 12.Digital root of 30 × 60 =
  13. 13.Digital root of 57 × 36 =
  14. 14.Digital root of 19861 =
  15. 15.Digital root of 46 × 79 =
  16. 16.Digital root of 12772 =
  17. 17.Digital root of 61551 =
  18. 18.Digital root of 19966 =
  19. 19.Digital root of 73731 =
  20. 20.Digital root of 29456 =
  21. 21.Digital root of 67 × 94 =
  22. 22.Digital root of 42476 =
  23. 23.Digital root of 62 × 25 =
  24. 24.Digital root of 51 × 82 =
  25. 25.Digital root of 17 × 35 =
  26. 26.Digital root of 2537 =
  27. 27.Digital root of 64 × 84 =
  28. 28.Digital root of 85914 =
  29. 29.Digital root of 7698 =
  30. 30.Digital root of 31303 =
  31. 31.Digital root of 36734 =
  32. 32.Digital root of 98352 =
  33. 33.Digital root of 11571 =
  34. 34.Digital root of 22 × 47 =
  35. 35.Digital root of 91739 =
  36. 36.Digital root of 42 × 36 =
  37. 37.Digital root of 92 × 18 =
  38. 38.Digital root of 11849 =
  39. 39.Digital root of 42670 =
  40. 40.Digital root of 97191 =

Answer key

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

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