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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 878 · 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 62 × 71 =
  2. 2.Digital root of 41879 =
  3. 3.Digital root of 45285 =
  4. 4.Digital root of 65773 =
  5. 5.Digital root of 25404 =
  6. 6.Digital root of 22 × 32 =
  7. 7.Digital root of 69 × 58 =
  8. 8.Digital root of 30 × 75 =
  9. 9.Digital root of 40289 =
  10. 10.Digital root of 85655 =
  11. 11.Digital root of 95632 =
  12. 12.Digital root of 43 × 77 =
  13. 13.Digital root of 71 × 66 =
  14. 14.Digital root of 47 × 28 =
  15. 15.Digital root of 88571 =
  16. 16.Digital root of 85366 =
  17. 17.Digital root of 89807 =
  18. 18.Digital root of 42251 =
  19. 19.Digital root of 91616 =
  20. 20.Digital root of 38646 =
  21. 21.Digital root of 23 × 84 =
  22. 22.Digital root of 16805 =
  23. 23.Digital root of 44 × 33 =
  24. 24.Digital root of 59 × 76 =
  25. 25.Digital root of 94963 =
  26. 26.Digital root of 88 × 27 =
  27. 27.Digital root of 20 × 40 =
  28. 28.Digital root of 85887 =
  29. 29.Digital root of 52375 =
  30. 30.Digital root of 62267 =
  31. 31.Digital root of 24 × 31 =
  32. 32.Digital root of 36777 =
  33. 33.Digital root of 12 × 92 =
  34. 34.Digital root of 70 × 89 =
  35. 35.Digital root of 83936 =
  36. 36.Digital root of 77336 =
  37. 37.Digital root of 27034 =
  38. 38.Digital root of 68613 =
  39. 39.Digital root of 68594 =
  40. 40.Digital root of 82974 =

Answer key

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

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