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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 578 · 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 59907 =
  2. 2.Digital root of 19626 =
  3. 3.Digital root of 94302 =
  4. 4.Digital root of 44874 =
  5. 5.Digital root of 35 × 58 =
  6. 6.Digital root of 35462 =
  7. 7.Digital root of 91 × 91 =
  8. 8.Digital root of 66392 =
  9. 9.Digital root of 47 × 32 =
  10. 10.Digital root of 31162 =
  11. 11.Digital root of 82669 =
  12. 12.Digital root of 86236 =
  13. 13.Digital root of 9264 =
  14. 14.Digital root of 20 × 80 =
  15. 15.Digital root of 77 × 28 =
  16. 16.Digital root of 13535 =
  17. 17.Digital root of 20769 =
  18. 18.Digital root of 61444 =
  19. 19.Digital root of 34 × 52 =
  20. 20.Digital root of 48 × 88 =
  21. 21.Digital root of 22587 =
  22. 22.Digital root of 39 × 60 =
  23. 23.Digital root of 60 × 72 =
  24. 24.Digital root of 71901 =
  25. 25.Digital root of 68 × 35 =
  26. 26.Digital root of 28105 =
  27. 27.Digital root of 97444 =
  28. 28.Digital root of 15455 =
  29. 29.Digital root of 57656 =
  30. 30.Digital root of 28 × 64 =
  31. 31.Digital root of 87 × 45 =
  32. 32.Digital root of 53520 =
  33. 33.Digital root of 47 × 22 =
  34. 34.Digital root of 64 × 66 =
  35. 35.Digital root of 45 × 67 =
  36. 36.Digital root of 86 × 86 =
  37. 37.Digital root of 2160 =
  38. 38.Digital root of 78 × 96 =
  39. 39.Digital root of 34 × 50 =
  40. 40.Digital root of 13 × 94 =

Answer key

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

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