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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 334 · 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 75675 =
  2. 2.Digital root of 10826 =
  3. 3.Digital root of 160 =
  4. 4.Digital root of 94077 =
  5. 5.Digital root of 40 × 51 =
  6. 6.Digital root of 1549 =
  7. 7.Digital root of 17 × 32 =
  8. 8.Digital root of 74350 =
  9. 9.Digital root of 55865 =
  10. 10.Digital root of 65079 =
  11. 11.Digital root of 77576 =
  12. 12.Digital root of 97151 =
  13. 13.Digital root of 73 × 18 =
  14. 14.Digital root of 30 × 31 =
  15. 15.Digital root of 52 × 63 =
  16. 16.Digital root of 54658 =
  17. 17.Digital root of 9130 =
  18. 18.Digital root of 42024 =
  19. 19.Digital root of 15698 =
  20. 20.Digital root of 94 × 91 =
  21. 21.Digital root of 45985 =
  22. 22.Digital root of 36 × 22 =
  23. 23.Digital root of 1812 =
  24. 24.Digital root of 89243 =
  25. 25.Digital root of 26564 =
  26. 26.Digital root of 39 × 97 =
  27. 27.Digital root of 95 × 33 =
  28. 28.Digital root of 87 × 60 =
  29. 29.Digital root of 55 × 69 =
  30. 30.Digital root of 56 × 54 =
  31. 31.Digital root of 20337 =
  32. 32.Digital root of 65448 =
  33. 33.Digital root of 66 × 15 =
  34. 34.Digital root of 42 × 59 =
  35. 35.Digital root of 95 × 94 =
  36. 36.Digital root of 75777 =
  37. 37.Digital root of 45315 =
  38. 38.Digital root of 85 × 40 =
  39. 39.Digital root of 65 × 78 =
  40. 40.Digital root of 64306 =

Answer key

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

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