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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 8 · 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 31151 =
  2. 2.Digital root of 89853 =
  3. 3.Digital root of 15233 =
  4. 4.Digital root of 41480 =
  5. 5.Digital root of 64 × 99 =
  6. 6.Digital root of 65 × 16 =
  7. 7.Digital root of 98189 =
  8. 8.Digital root of 2272 =
  9. 9.Digital root of 26518 =
  10. 10.Digital root of 79112 =
  11. 11.Digital root of 87359 =
  12. 12.Digital root of 81779 =
  13. 13.Digital root of 60 × 15 =
  14. 14.Digital root of 42 × 51 =
  15. 15.Digital root of 79 × 28 =
  16. 16.Digital root of 20 × 95 =
  17. 17.Digital root of 80332 =
  18. 18.Digital root of 82 × 75 =
  19. 19.Digital root of 93553 =
  20. 20.Digital root of 72889 =
  21. 21.Digital root of 36 × 31 =
  22. 22.Digital root of 93 × 57 =
  23. 23.Digital root of 73 × 13 =
  24. 24.Digital root of 78 × 12 =
  25. 25.Digital root of 20268 =
  26. 26.Digital root of 76652 =
  27. 27.Digital root of 51211 =
  28. 28.Digital root of 84 × 91 =
  29. 29.Digital root of 14 × 65 =
  30. 30.Digital root of 32 × 50 =
  31. 31.Digital root of 22935 =
  32. 32.Digital root of 94887 =
  33. 33.Digital root of 82762 =
  34. 34.Digital root of 95476 =
  35. 35.Digital root of 32402 =
  36. 36.Digital root of 59 × 56 =
  37. 37.Digital root of 65479 =
  38. 38.Digital root of 14262 =
  39. 39.Digital root of 44 × 25 =
  40. 40.Digital root of 81474 =

Answer key

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

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