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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 913 · 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 36598 =
  2. 2.Digital root of 9797 =
  3. 3.Digital root of 8862 =
  4. 4.Digital root of 14 × 53 =
  5. 5.Digital root of 82 × 61 =
  6. 6.Digital root of 76 × 43 =
  7. 7.Digital root of 62 × 41 =
  8. 8.Digital root of 66 × 67 =
  9. 9.Digital root of 64 × 35 =
  10. 10.Digital root of 38891 =
  11. 11.Digital root of 1408 =
  12. 12.Digital root of 65 × 41 =
  13. 13.Digital root of 12070 =
  14. 14.Digital root of 50806 =
  15. 15.Digital root of 52 × 70 =
  16. 16.Digital root of 60 × 17 =
  17. 17.Digital root of 61633 =
  18. 18.Digital root of 80058 =
  19. 19.Digital root of 40093 =
  20. 20.Digital root of 70 × 52 =
  21. 21.Digital root of 61250 =
  22. 22.Digital root of 55 × 54 =
  23. 23.Digital root of 65 × 19 =
  24. 24.Digital root of 69839 =
  25. 25.Digital root of 27 × 54 =
  26. 26.Digital root of 62554 =
  27. 27.Digital root of 47 × 29 =
  28. 28.Digital root of 48204 =
  29. 29.Digital root of 23 × 58 =
  30. 30.Digital root of 37822 =
  31. 31.Digital root of 79498 =
  32. 32.Digital root of 99542 =
  33. 33.Digital root of 50640 =
  34. 34.Digital root of 66001 =
  35. 35.Digital root of 24762 =
  36. 36.Digital root of 54 × 40 =
  37. 37.Digital root of 70430 =
  38. 38.Digital root of 82 × 23 =
  39. 39.Digital root of 89478 =
  40. 40.Digital root of 41628 =

Answer key

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

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