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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 860 · 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 87 × 38 =
  2. 2.Digital root of 32 × 82 =
  3. 3.Digital root of 41022 =
  4. 4.Digital root of 96 × 62 =
  5. 5.Digital root of 53575 =
  6. 6.Digital root of 98213 =
  7. 7.Digital root of 79911 =
  8. 8.Digital root of 15 × 15 =
  9. 9.Digital root of 70 × 18 =
  10. 10.Digital root of 58223 =
  11. 11.Digital root of 14 × 47 =
  12. 12.Digital root of 93 × 27 =
  13. 13.Digital root of 98824 =
  14. 14.Digital root of 9003 =
  15. 15.Digital root of 84920 =
  16. 16.Digital root of 87 × 21 =
  17. 17.Digital root of 89 × 22 =
  18. 18.Digital root of 38055 =
  19. 19.Digital root of 44 × 13 =
  20. 20.Digital root of 96236 =
  21. 21.Digital root of 84 × 53 =
  22. 22.Digital root of 90 × 70 =
  23. 23.Digital root of 71851 =
  24. 24.Digital root of 8098 =
  25. 25.Digital root of 57562 =
  26. 26.Digital root of 46 × 54 =
  27. 27.Digital root of 48491 =
  28. 28.Digital root of 70044 =
  29. 29.Digital root of 58 × 42 =
  30. 30.Digital root of 10598 =
  31. 31.Digital root of 63652 =
  32. 32.Digital root of 19732 =
  33. 33.Digital root of 30209 =
  34. 34.Digital root of 12 × 76 =
  35. 35.Digital root of 70857 =
  36. 36.Digital root of 55 × 14 =
  37. 37.Digital root of 42695 =
  38. 38.Digital root of 35 × 32 =
  39. 39.Digital root of 44214 =
  40. 40.Digital root of 67059 =

Answer key

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

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