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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 175 · 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 29692 =
  2. 2.Digital root of 76 × 48 =
  3. 3.Digital root of 12228 =
  4. 4.Digital root of 41561 =
  5. 5.Digital root of 94 × 23 =
  6. 6.Digital root of 68 × 32 =
  7. 7.Digital root of 88 × 23 =
  8. 8.Digital root of 44844 =
  9. 9.Digital root of 7549 =
  10. 10.Digital root of 81499 =
  11. 11.Digital root of 99420 =
  12. 12.Digital root of 1507 =
  13. 13.Digital root of 33761 =
  14. 14.Digital root of 87261 =
  15. 15.Digital root of 69782 =
  16. 16.Digital root of 56690 =
  17. 17.Digital root of 14507 =
  18. 18.Digital root of 19861 =
  19. 19.Digital root of 82 × 82 =
  20. 20.Digital root of 81323 =
  21. 21.Digital root of 25 × 24 =
  22. 22.Digital root of 39 × 80 =
  23. 23.Digital root of 27 × 50 =
  24. 24.Digital root of 6164 =
  25. 25.Digital root of 92864 =
  26. 26.Digital root of 26 × 98 =
  27. 27.Digital root of 61482 =
  28. 28.Digital root of 18 × 89 =
  29. 29.Digital root of 43 × 89 =
  30. 30.Digital root of 44561 =
  31. 31.Digital root of 86 × 36 =
  32. 32.Digital root of 81180 =
  33. 33.Digital root of 59 × 57 =
  34. 34.Digital root of 21 × 38 =
  35. 35.Digital root of 1678 =
  36. 36.Digital root of 8778 =
  37. 37.Digital root of 59952 =
  38. 38.Digital root of 21 × 28 =
  39. 39.Digital root of 72484 =
  40. 40.Digital root of 38 × 85 =

Answer key

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

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