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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 232 · 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 76927 =
  2. 2.Digital root of 87 × 34 =
  3. 3.Digital root of 29316 =
  4. 4.Digital root of 88 × 54 =
  5. 5.Digital root of 51426 =
  6. 6.Digital root of 92381 =
  7. 7.Digital root of 34 × 33 =
  8. 8.Digital root of 77 × 36 =
  9. 9.Digital root of 91 × 51 =
  10. 10.Digital root of 84 × 65 =
  11. 11.Digital root of 92946 =
  12. 12.Digital root of 8966 =
  13. 13.Digital root of 40 × 88 =
  14. 14.Digital root of 24243 =
  15. 15.Digital root of 70476 =
  16. 16.Digital root of 61894 =
  17. 17.Digital root of 66 × 45 =
  18. 18.Digital root of 74188 =
  19. 19.Digital root of 27777 =
  20. 20.Digital root of 7940 =
  21. 21.Digital root of 39313 =
  22. 22.Digital root of 57042 =
  23. 23.Digital root of 66057 =
  24. 24.Digital root of 82 × 64 =
  25. 25.Digital root of 45257 =
  26. 26.Digital root of 20560 =
  27. 27.Digital root of 45248 =
  28. 28.Digital root of 3624 =
  29. 29.Digital root of 42 × 23 =
  30. 30.Digital root of 68 × 90 =
  31. 31.Digital root of 69 × 23 =
  32. 32.Digital root of 70 × 96 =
  33. 33.Digital root of 19 × 63 =
  34. 34.Digital root of 39 × 65 =
  35. 35.Digital root of 79010 =
  36. 36.Digital root of 13892 =
  37. 37.Digital root of 33909 =
  38. 38.Digital root of 76633 =
  39. 39.Digital root of 99165 =
  40. 40.Digital root of 83 × 64 =

Answer key

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

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