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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 360 · 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 74027 =
  2. 2.Digital root of 91667 =
  3. 3.Digital root of 42 × 22 =
  4. 4.Digital root of 99 × 59 =
  5. 5.Digital root of 30604 =
  6. 6.Digital root of 59701 =
  7. 7.Digital root of 53472 =
  8. 8.Digital root of 30590 =
  9. 9.Digital root of 36 × 48 =
  10. 10.Digital root of 60513 =
  11. 11.Digital root of 69411 =
  12. 12.Digital root of 44 × 88 =
  13. 13.Digital root of 96151 =
  14. 14.Digital root of 97667 =
  15. 15.Digital root of 95 × 16 =
  16. 16.Digital root of 69 × 13 =
  17. 17.Digital root of 84137 =
  18. 18.Digital root of 41 × 28 =
  19. 19.Digital root of 10947 =
  20. 20.Digital root of 85513 =
  21. 21.Digital root of 56 × 31 =
  22. 22.Digital root of 11409 =
  23. 23.Digital root of 34236 =
  24. 24.Digital root of 12054 =
  25. 25.Digital root of 43415 =
  26. 26.Digital root of 35 × 78 =
  27. 27.Digital root of 28 × 34 =
  28. 28.Digital root of 29 × 81 =
  29. 29.Digital root of 69 × 38 =
  30. 30.Digital root of 58 × 17 =
  31. 31.Digital root of 64 × 69 =
  32. 32.Digital root of 58 × 50 =
  33. 33.Digital root of 72 × 48 =
  34. 34.Digital root of 51252 =
  35. 35.Digital root of 26 × 49 =
  36. 36.Digital root of 39559 =
  37. 37.Digital root of 43722 =
  38. 38.Digital root of 92798 =
  39. 39.Digital root of 67976 =
  40. 40.Digital root of 34 × 21 =

Answer key

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

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