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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 516 · 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 98890 =
  2. 2.Digital root of 24674 =
  3. 3.Digital root of 56335 =
  4. 4.Digital root of 97 × 23 =
  5. 5.Digital root of 29147 =
  6. 6.Digital root of 42053 =
  7. 7.Digital root of 91587 =
  8. 8.Digital root of 5776 =
  9. 9.Digital root of 60754 =
  10. 10.Digital root of 65483 =
  11. 11.Digital root of 93 × 19 =
  12. 12.Digital root of 57 × 16 =
  13. 13.Digital root of 77863 =
  14. 14.Digital root of 9919 =
  15. 15.Digital root of 66 × 50 =
  16. 16.Digital root of 59925 =
  17. 17.Digital root of 85877 =
  18. 18.Digital root of 97 × 65 =
  19. 19.Digital root of 27 × 84 =
  20. 20.Digital root of 67 × 24 =
  21. 21.Digital root of 22503 =
  22. 22.Digital root of 53 × 20 =
  23. 23.Digital root of 36070 =
  24. 24.Digital root of 67 × 98 =
  25. 25.Digital root of 72114 =
  26. 26.Digital root of 91152 =
  27. 27.Digital root of 24175 =
  28. 28.Digital root of 68405 =
  29. 29.Digital root of 61 × 18 =
  30. 30.Digital root of 35 × 55 =
  31. 31.Digital root of 98 × 95 =
  32. 32.Digital root of 64450 =
  33. 33.Digital root of 93 × 68 =
  34. 34.Digital root of 22 × 57 =
  35. 35.Digital root of 50 × 22 =
  36. 36.Digital root of 78 × 47 =
  37. 37.Digital root of 55014 =
  38. 38.Digital root of 53 × 18 =
  39. 39.Digital root of 19 × 82 =
  40. 40.Digital root of 46 × 18 =

Answer key

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

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