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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 706 · 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 46545 =
  2. 2.Digital root of 94646 =
  3. 3.Digital root of 6799 =
  4. 4.Digital root of 22 × 15 =
  5. 5.Digital root of 99 × 47 =
  6. 6.Digital root of 23 × 18 =
  7. 7.Digital root of 22332 =
  8. 8.Digital root of 62150 =
  9. 9.Digital root of 21 × 70 =
  10. 10.Digital root of 44795 =
  11. 11.Digital root of 68141 =
  12. 12.Digital root of 37704 =
  13. 13.Digital root of 68794 =
  14. 14.Digital root of 26885 =
  15. 15.Digital root of 21 × 49 =
  16. 16.Digital root of 15 × 75 =
  17. 17.Digital root of 97 × 93 =
  18. 18.Digital root of 59829 =
  19. 19.Digital root of 78 × 43 =
  20. 20.Digital root of 59 × 15 =
  21. 21.Digital root of 76281 =
  22. 22.Digital root of 16740 =
  23. 23.Digital root of 12 × 70 =
  24. 24.Digital root of 31 × 13 =
  25. 25.Digital root of 39 × 23 =
  26. 26.Digital root of 72300 =
  27. 27.Digital root of 43499 =
  28. 28.Digital root of 27 × 35 =
  29. 29.Digital root of 71 × 85 =
  30. 30.Digital root of 90 × 62 =
  31. 31.Digital root of 37944 =
  32. 32.Digital root of 85 × 20 =
  33. 33.Digital root of 91 × 35 =
  34. 34.Digital root of 80811 =
  35. 35.Digital root of 66147 =
  36. 36.Digital root of 65153 =
  37. 37.Digital root of 76352 =
  38. 38.Digital root of 42643 =
  39. 39.Digital root of 32882 =
  40. 40.Digital root of 26778 =

Answer key

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

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