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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 467 · 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 26 × 67 =
  2. 2.Digital root of 45136 =
  3. 3.Digital root of 46341 =
  4. 4.Digital root of 43428 =
  5. 5.Digital root of 82888 =
  6. 6.Digital root of 94176 =
  7. 7.Digital root of 95695 =
  8. 8.Digital root of 28892 =
  9. 9.Digital root of 91081 =
  10. 10.Digital root of 79880 =
  11. 11.Digital root of 4932 =
  12. 12.Digital root of 71 × 97 =
  13. 13.Digital root of 4137 =
  14. 14.Digital root of 14820 =
  15. 15.Digital root of 69 × 60 =
  16. 16.Digital root of 69 × 25 =
  17. 17.Digital root of 37464 =
  18. 18.Digital root of 21789 =
  19. 19.Digital root of 93560 =
  20. 20.Digital root of 98329 =
  21. 21.Digital root of 7633 =
  22. 22.Digital root of 13613 =
  23. 23.Digital root of 42486 =
  24. 24.Digital root of 50 × 82 =
  25. 25.Digital root of 45959 =
  26. 26.Digital root of 42 × 25 =
  27. 27.Digital root of 41573 =
  28. 28.Digital root of 70145 =
  29. 29.Digital root of 8281 =
  30. 30.Digital root of 24017 =
  31. 31.Digital root of 22003 =
  32. 32.Digital root of 95019 =
  33. 33.Digital root of 80 × 31 =
  34. 34.Digital root of 58497 =
  35. 35.Digital root of 15 × 78 =
  36. 36.Digital root of 89 × 27 =
  37. 37.Digital root of 23 × 96 =
  38. 38.Digital root of 60 × 30 =
  39. 39.Digital root of 15 × 41 =
  40. 40.Digital root of 49048 =

Answer key

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

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