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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 843 · 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 40 × 75 =
  2. 2.Digital root of 34 × 73 =
  3. 3.Digital root of 48601 =
  4. 4.Digital root of 86 × 28 =
  5. 5.Digital root of 71 × 19 =
  6. 6.Digital root of 29568 =
  7. 7.Digital root of 51209 =
  8. 8.Digital root of 94606 =
  9. 9.Digital root of 22326 =
  10. 10.Digital root of 26 × 59 =
  11. 11.Digital root of 16933 =
  12. 12.Digital root of 25 × 55 =
  13. 13.Digital root of 98093 =
  14. 14.Digital root of 96980 =
  15. 15.Digital root of 18 × 87 =
  16. 16.Digital root of 4294 =
  17. 17.Digital root of 78 × 30 =
  18. 18.Digital root of 16739 =
  19. 19.Digital root of 66989 =
  20. 20.Digital root of 14 × 23 =
  21. 21.Digital root of 99 × 35 =
  22. 22.Digital root of 82689 =
  23. 23.Digital root of 95 × 94 =
  24. 24.Digital root of 13 × 55 =
  25. 25.Digital root of 26707 =
  26. 26.Digital root of 48490 =
  27. 27.Digital root of 38 × 96 =
  28. 28.Digital root of 49 × 30 =
  29. 29.Digital root of 98725 =
  30. 30.Digital root of 12917 =
  31. 31.Digital root of 26277 =
  32. 32.Digital root of 1943 =
  33. 33.Digital root of 31075 =
  34. 34.Digital root of 73 × 14 =
  35. 35.Digital root of 33 × 87 =
  36. 36.Digital root of 19998 =
  37. 37.Digital root of 95258 =
  38. 38.Digital root of 68908 =
  39. 39.Digital root of 94 × 72 =
  40. 40.Digital root of 93 × 22 =

Answer key

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

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