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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 184 · 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 21232 =
  2. 2.Digital root of 24536 =
  3. 3.Digital root of 40914 =
  4. 4.Digital root of 11935 =
  5. 5.Digital root of 59 × 69 =
  6. 6.Digital root of 57496 =
  7. 7.Digital root of 83 × 25 =
  8. 8.Digital root of 37 × 52 =
  9. 9.Digital root of 39926 =
  10. 10.Digital root of 23 × 99 =
  11. 11.Digital root of 73214 =
  12. 12.Digital root of 42597 =
  13. 13.Digital root of 65483 =
  14. 14.Digital root of 23 × 71 =
  15. 15.Digital root of 20297 =
  16. 16.Digital root of 79097 =
  17. 17.Digital root of 22904 =
  18. 18.Digital root of 1506 =
  19. 19.Digital root of 48 × 58 =
  20. 20.Digital root of 24527 =
  21. 21.Digital root of 70 × 73 =
  22. 22.Digital root of 20790 =
  23. 23.Digital root of 195 =
  24. 24.Digital root of 8850 =
  25. 25.Digital root of 73894 =
  26. 26.Digital root of 45 × 68 =
  27. 27.Digital root of 67 × 20 =
  28. 28.Digital root of 20 × 97 =
  29. 29.Digital root of 21967 =
  30. 30.Digital root of 91 × 52 =
  31. 31.Digital root of 439 =
  32. 32.Digital root of 64 × 23 =
  33. 33.Digital root of 53 × 17 =
  34. 34.Digital root of 6259 =
  35. 35.Digital root of 96206 =
  36. 36.Digital root of 16234 =
  37. 37.Digital root of 77 × 12 =
  38. 38.Digital root of 23975 =
  39. 39.Digital root of 69 × 38 =
  40. 40.Digital root of 31 × 29 =

Answer key

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

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