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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 556 · 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 79746 =
  2. 2.Digital root of 49504 =
  3. 3.Digital root of 16 × 72 =
  4. 4.Digital root of 43 × 74 =
  5. 5.Digital root of 86 × 95 =
  6. 6.Digital root of 86779 =
  7. 7.Digital root of 92355 =
  8. 8.Digital root of 24260 =
  9. 9.Digital root of 97 × 14 =
  10. 10.Digital root of 33 × 97 =
  11. 11.Digital root of 90 × 12 =
  12. 12.Digital root of 70730 =
  13. 13.Digital root of 26 × 31 =
  14. 14.Digital root of 59129 =
  15. 15.Digital root of 21775 =
  16. 16.Digital root of 44 × 27 =
  17. 17.Digital root of 57 × 56 =
  18. 18.Digital root of 27939 =
  19. 19.Digital root of 25 × 89 =
  20. 20.Digital root of 21170 =
  21. 21.Digital root of 21552 =
  22. 22.Digital root of 97 × 95 =
  23. 23.Digital root of 58574 =
  24. 24.Digital root of 36 × 37 =
  25. 25.Digital root of 56586 =
  26. 26.Digital root of 31110 =
  27. 27.Digital root of 69 × 51 =
  28. 28.Digital root of 71 × 17 =
  29. 29.Digital root of 68 × 97 =
  30. 30.Digital root of 60 × 95 =
  31. 31.Digital root of 99487 =
  32. 32.Digital root of 63758 =
  33. 33.Digital root of 12982 =
  34. 34.Digital root of 93758 =
  35. 35.Digital root of 89585 =
  36. 36.Digital root of 16899 =
  37. 37.Digital root of 68 × 67 =
  38. 38.Digital root of 70855 =
  39. 39.Digital root of 360 =
  40. 40.Digital root of 76728 =

Answer key

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

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