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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 930 · 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 43 × 74 =
  2. 2.Digital root of 88 × 87 =
  3. 3.Digital root of 12 × 94 =
  4. 4.Digital root of 85950 =
  5. 5.Digital root of 55440 =
  6. 6.Digital root of 88 × 59 =
  7. 7.Digital root of 24 × 28 =
  8. 8.Digital root of 63 × 31 =
  9. 9.Digital root of 87963 =
  10. 10.Digital root of 51 × 12 =
  11. 11.Digital root of 50 × 49 =
  12. 12.Digital root of 43755 =
  13. 13.Digital root of 76603 =
  14. 14.Digital root of 33526 =
  15. 15.Digital root of 30 × 57 =
  16. 16.Digital root of 91 × 57 =
  17. 17.Digital root of 23465 =
  18. 18.Digital root of 5661 =
  19. 19.Digital root of 22039 =
  20. 20.Digital root of 40 × 69 =
  21. 21.Digital root of 48599 =
  22. 22.Digital root of 55682 =
  23. 23.Digital root of 23 × 30 =
  24. 24.Digital root of 92561 =
  25. 25.Digital root of 70 × 85 =
  26. 26.Digital root of 78289 =
  27. 27.Digital root of 95881 =
  28. 28.Digital root of 89 × 66 =
  29. 29.Digital root of 21366 =
  30. 30.Digital root of 54 × 76 =
  31. 31.Digital root of 69 × 16 =
  32. 32.Digital root of 65 × 79 =
  33. 33.Digital root of 85 × 97 =
  34. 34.Digital root of 25 × 49 =
  35. 35.Digital root of 54222 =
  36. 36.Digital root of 64188 =
  37. 37.Digital root of 19608 =
  38. 38.Digital root of 52 × 71 =
  39. 39.Digital root of 58485 =
  40. 40.Digital root of 59 × 30 =

Answer key

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

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