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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 922 · 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 25740 =
  2. 2.Digital root of 37 × 88 =
  3. 3.Digital root of 33 × 25 =
  4. 4.Digital root of 50 × 96 =
  5. 5.Digital root of 23 × 57 =
  6. 6.Digital root of 29584 =
  7. 7.Digital root of 15202 =
  8. 8.Digital root of 77 × 26 =
  9. 9.Digital root of 50618 =
  10. 10.Digital root of 90 × 32 =
  11. 11.Digital root of 46 × 38 =
  12. 12.Digital root of 19 × 91 =
  13. 13.Digital root of 37975 =
  14. 14.Digital root of 23205 =
  15. 15.Digital root of 69197 =
  16. 16.Digital root of 30784 =
  17. 17.Digital root of 13 × 54 =
  18. 18.Digital root of 64 × 68 =
  19. 19.Digital root of 34 × 41 =
  20. 20.Digital root of 39 × 32 =
  21. 21.Digital root of 97 × 62 =
  22. 22.Digital root of 25 × 13 =
  23. 23.Digital root of 68624 =
  24. 24.Digital root of 64887 =
  25. 25.Digital root of 22 × 37 =
  26. 26.Digital root of 73382 =
  27. 27.Digital root of 80381 =
  28. 28.Digital root of 53 × 42 =
  29. 29.Digital root of 20 × 99 =
  30. 30.Digital root of 62885 =
  31. 31.Digital root of 73463 =
  32. 32.Digital root of 75468 =
  33. 33.Digital root of 56247 =
  34. 34.Digital root of 72202 =
  35. 35.Digital root of 50770 =
  36. 36.Digital root of 22053 =
  37. 37.Digital root of 17 × 75 =
  38. 38.Digital root of 20195 =
  39. 39.Digital root of 13813 =
  40. 40.Digital root of 9267 =

Answer key

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

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