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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 601 · 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 41 × 49 =
  2. 2.Digital root of 35966 =
  3. 3.Digital root of 46411 =
  4. 4.Digital root of 98 × 79 =
  5. 5.Digital root of 46509 =
  6. 6.Digital root of 26499 =
  7. 7.Digital root of 65939 =
  8. 8.Digital root of 66535 =
  9. 9.Digital root of 39203 =
  10. 10.Digital root of 87 × 83 =
  11. 11.Digital root of 32 × 21 =
  12. 12.Digital root of 25817 =
  13. 13.Digital root of 18409 =
  14. 14.Digital root of 30038 =
  15. 15.Digital root of 98 × 75 =
  16. 16.Digital root of 45 × 96 =
  17. 17.Digital root of 92439 =
  18. 18.Digital root of 20332 =
  19. 19.Digital root of 58 × 82 =
  20. 20.Digital root of 66767 =
  21. 21.Digital root of 7173 =
  22. 22.Digital root of 87342 =
  23. 23.Digital root of 41 × 57 =
  24. 24.Digital root of 78 × 30 =
  25. 25.Digital root of 35556 =
  26. 26.Digital root of 67 × 97 =
  27. 27.Digital root of 35 × 26 =
  28. 28.Digital root of 41 × 51 =
  29. 29.Digital root of 53 × 22 =
  30. 30.Digital root of 60 × 76 =
  31. 31.Digital root of 69 × 32 =
  32. 32.Digital root of 72 × 83 =
  33. 33.Digital root of 83 × 48 =
  34. 34.Digital root of 26803 =
  35. 35.Digital root of 83 × 90 =
  36. 36.Digital root of 13963 =
  37. 37.Digital root of 27843 =
  38. 38.Digital root of 34787 =
  39. 39.Digital root of 78394 =
  40. 40.Digital root of 85 × 32 =

Answer key

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

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