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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 740 · 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 17714 =
  2. 2.Digital root of 20020 =
  3. 3.Digital root of 98 × 57 =
  4. 4.Digital root of 64476 =
  5. 5.Digital root of 25 × 68 =
  6. 6.Digital root of 57923 =
  7. 7.Digital root of 30226 =
  8. 8.Digital root of 38 × 98 =
  9. 9.Digital root of 74205 =
  10. 10.Digital root of 11148 =
  11. 11.Digital root of 49529 =
  12. 12.Digital root of 42341 =
  13. 13.Digital root of 89425 =
  14. 14.Digital root of 26903 =
  15. 15.Digital root of 75 × 33 =
  16. 16.Digital root of 38 × 29 =
  17. 17.Digital root of 20783 =
  18. 18.Digital root of 23966 =
  19. 19.Digital root of 35 × 87 =
  20. 20.Digital root of 48 × 17 =
  21. 21.Digital root of 92694 =
  22. 22.Digital root of 47823 =
  23. 23.Digital root of 31347 =
  24. 24.Digital root of 37 × 45 =
  25. 25.Digital root of 79205 =
  26. 26.Digital root of 94 × 55 =
  27. 27.Digital root of 62 × 17 =
  28. 28.Digital root of 18130 =
  29. 29.Digital root of 8105 =
  30. 30.Digital root of 6389 =
  31. 31.Digital root of 36 × 60 =
  32. 32.Digital root of 15 × 30 =
  33. 33.Digital root of 12 × 94 =
  34. 34.Digital root of 15 × 40 =
  35. 35.Digital root of 48678 =
  36. 36.Digital root of 92 × 63 =
  37. 37.Digital root of 14 × 94 =
  38. 38.Digital root of 47346 =
  39. 39.Digital root of 25514 =
  40. 40.Digital root of 80209 =

Answer key

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

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