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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 686 · 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 33 × 67 =
  2. 2.Digital root of 47884 =
  3. 3.Digital root of 60 × 53 =
  4. 4.Digital root of 22625 =
  5. 5.Digital root of 53133 =
  6. 6.Digital root of 4492 =
  7. 7.Digital root of 3042 =
  8. 8.Digital root of 26 × 17 =
  9. 9.Digital root of 95079 =
  10. 10.Digital root of 19846 =
  11. 11.Digital root of 39 × 49 =
  12. 12.Digital root of 83044 =
  13. 13.Digital root of 25 × 53 =
  14. 14.Digital root of 86 × 85 =
  15. 15.Digital root of 77919 =
  16. 16.Digital root of 60538 =
  17. 17.Digital root of 55 × 39 =
  18. 18.Digital root of 97 × 66 =
  19. 19.Digital root of 84168 =
  20. 20.Digital root of 4588 =
  21. 21.Digital root of 64 × 17 =
  22. 22.Digital root of 48 × 50 =
  23. 23.Digital root of 61 × 64 =
  24. 24.Digital root of 43780 =
  25. 25.Digital root of 1552 =
  26. 26.Digital root of 95456 =
  27. 27.Digital root of 60188 =
  28. 28.Digital root of 16 × 36 =
  29. 29.Digital root of 86 × 64 =
  30. 30.Digital root of 16748 =
  31. 31.Digital root of 95 × 67 =
  32. 32.Digital root of 80 × 65 =
  33. 33.Digital root of 36754 =
  34. 34.Digital root of 52 × 15 =
  35. 35.Digital root of 70 × 51 =
  36. 36.Digital root of 81 × 66 =
  37. 37.Digital root of 63 × 13 =
  38. 38.Digital root of 28 × 82 =
  39. 39.Digital root of 24 × 32 =
  40. 40.Digital root of 29450 =

Answer key

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

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