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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 204 · 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 51 × 79 =
  2. 2.Digital root of 14317 =
  3. 3.Digital root of 25 × 91 =
  4. 4.Digital root of 43165 =
  5. 5.Digital root of 42805 =
  6. 6.Digital root of 29 × 56 =
  7. 7.Digital root of 18 × 86 =
  8. 8.Digital root of 41543 =
  9. 9.Digital root of 3071 =
  10. 10.Digital root of 24778 =
  11. 11.Digital root of 27559 =
  12. 12.Digital root of 25 × 95 =
  13. 13.Digital root of 35551 =
  14. 14.Digital root of 52472 =
  15. 15.Digital root of 7696 =
  16. 16.Digital root of 39940 =
  17. 17.Digital root of 32 × 61 =
  18. 18.Digital root of 79 × 88 =
  19. 19.Digital root of 74314 =
  20. 20.Digital root of 6944 =
  21. 21.Digital root of 9272 =
  22. 22.Digital root of 7283 =
  23. 23.Digital root of 94193 =
  24. 24.Digital root of 46 × 96 =
  25. 25.Digital root of 42584 =
  26. 26.Digital root of 33 × 78 =
  27. 27.Digital root of 41887 =
  28. 28.Digital root of 46040 =
  29. 29.Digital root of 71 × 60 =
  30. 30.Digital root of 8210 =
  31. 31.Digital root of 5989 =
  32. 32.Digital root of 29055 =
  33. 33.Digital root of 23 × 19 =
  34. 34.Digital root of 5390 =
  35. 35.Digital root of 65501 =
  36. 36.Digital root of 48 × 95 =
  37. 37.Digital root of 11695 =
  38. 38.Digital root of 99785 =
  39. 39.Digital root of 58 × 92 =
  40. 40.Digital root of 21022 =

Answer key

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

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