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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 279 · 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 25262 =
  2. 2.Digital root of 55 × 31 =
  3. 3.Digital root of 20 × 38 =
  4. 4.Digital root of 93 × 83 =
  5. 5.Digital root of 97 × 97 =
  6. 6.Digital root of 86465 =
  7. 7.Digital root of 46284 =
  8. 8.Digital root of 24 × 88 =
  9. 9.Digital root of 77675 =
  10. 10.Digital root of 62367 =
  11. 11.Digital root of 36 × 40 =
  12. 12.Digital root of 21256 =
  13. 13.Digital root of 10317 =
  14. 14.Digital root of 27 × 57 =
  15. 15.Digital root of 45422 =
  16. 16.Digital root of 33302 =
  17. 17.Digital root of 16333 =
  18. 18.Digital root of 20 × 78 =
  19. 19.Digital root of 61491 =
  20. 20.Digital root of 74 × 68 =
  21. 21.Digital root of 6076 =
  22. 22.Digital root of 86 × 95 =
  23. 23.Digital root of 91008 =
  24. 24.Digital root of 66708 =
  25. 25.Digital root of 17 × 53 =
  26. 26.Digital root of 55 × 60 =
  27. 27.Digital root of 5660 =
  28. 28.Digital root of 82 × 59 =
  29. 29.Digital root of 22903 =
  30. 30.Digital root of 92222 =
  31. 31.Digital root of 45315 =
  32. 32.Digital root of 99 × 17 =
  33. 33.Digital root of 10683 =
  34. 34.Digital root of 47 × 50 =
  35. 35.Digital root of 29 × 44 =
  36. 36.Digital root of 6926 =
  37. 37.Digital root of 61 × 32 =
  38. 38.Digital root of 86 × 20 =
  39. 39.Digital root of 78 × 57 =
  40. 40.Digital root of 96259 =

Answer key

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

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