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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 984 · 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 28835 =
  2. 2.Digital root of 32 × 73 =
  3. 3.Digital root of 25 × 76 =
  4. 4.Digital root of 54812 =
  5. 5.Digital root of 17695 =
  6. 6.Digital root of 47 × 62 =
  7. 7.Digital root of 86298 =
  8. 8.Digital root of 15 × 23 =
  9. 9.Digital root of 52 × 80 =
  10. 10.Digital root of 66 × 16 =
  11. 11.Digital root of 91 × 16 =
  12. 12.Digital root of 52202 =
  13. 13.Digital root of 21305 =
  14. 14.Digital root of 16 × 44 =
  15. 15.Digital root of 63817 =
  16. 16.Digital root of 2309 =
  17. 17.Digital root of 53894 =
  18. 18.Digital root of 93 × 65 =
  19. 19.Digital root of 8989 =
  20. 20.Digital root of 83 × 17 =
  21. 21.Digital root of 88 × 68 =
  22. 22.Digital root of 35155 =
  23. 23.Digital root of 86 × 93 =
  24. 24.Digital root of 69933 =
  25. 25.Digital root of 38 × 28 =
  26. 26.Digital root of 43135 =
  27. 27.Digital root of 15 × 76 =
  28. 28.Digital root of 98 × 25 =
  29. 29.Digital root of 62 × 17 =
  30. 30.Digital root of 44 × 84 =
  31. 31.Digital root of 89009 =
  32. 32.Digital root of 22841 =
  33. 33.Digital root of 17153 =
  34. 34.Digital root of 94 × 37 =
  35. 35.Digital root of 25 × 36 =
  36. 36.Digital root of 55390 =
  37. 37.Digital root of 15 × 75 =
  38. 38.Digital root of 48418 =
  39. 39.Digital root of 98185 =
  40. 40.Digital root of 43 × 34 =

Answer key

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

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