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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 462 · 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 77341 =
  2. 2.Digital root of 34971 =
  3. 3.Digital root of 13 × 32 =
  4. 4.Digital root of 36 × 63 =
  5. 5.Digital root of 80180 =
  6. 6.Digital root of 33 × 50 =
  7. 7.Digital root of 86 × 75 =
  8. 8.Digital root of 93 × 59 =
  9. 9.Digital root of 86 × 48 =
  10. 10.Digital root of 95 × 62 =
  11. 11.Digital root of 54853 =
  12. 12.Digital root of 18166 =
  13. 13.Digital root of 64101 =
  14. 14.Digital root of 65016 =
  15. 15.Digital root of 82480 =
  16. 16.Digital root of 10951 =
  17. 17.Digital root of 85783 =
  18. 18.Digital root of 17 × 56 =
  19. 19.Digital root of 60 × 78 =
  20. 20.Digital root of 59203 =
  21. 21.Digital root of 98163 =
  22. 22.Digital root of 36912 =
  23. 23.Digital root of 13 × 99 =
  24. 24.Digital root of 58 × 18 =
  25. 25.Digital root of 2960 =
  26. 26.Digital root of 23978 =
  27. 27.Digital root of 51 × 34 =
  28. 28.Digital root of 97 × 32 =
  29. 29.Digital root of 29 × 93 =
  30. 30.Digital root of 27 × 34 =
  31. 31.Digital root of 7070 =
  32. 32.Digital root of 24413 =
  33. 33.Digital root of 53714 =
  34. 34.Digital root of 43 × 95 =
  35. 35.Digital root of 87318 =
  36. 36.Digital root of 40670 =
  37. 37.Digital root of 59886 =
  38. 38.Digital root of 26109 =
  39. 39.Digital root of 13513 =
  40. 40.Digital root of 91 × 30 =

Answer key

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

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