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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 384 · 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 66053 =
  2. 2.Digital root of 77355 =
  3. 3.Digital root of 18 × 61 =
  4. 4.Digital root of 27275 =
  5. 5.Digital root of 83290 =
  6. 6.Digital root of 74832 =
  7. 7.Digital root of 23 × 37 =
  8. 8.Digital root of 77475 =
  9. 9.Digital root of 21 × 81 =
  10. 10.Digital root of 63 × 35 =
  11. 11.Digital root of 3841 =
  12. 12.Digital root of 17424 =
  13. 13.Digital root of 92705 =
  14. 14.Digital root of 43 × 69 =
  15. 15.Digital root of 39 × 93 =
  16. 16.Digital root of 58 × 95 =
  17. 17.Digital root of 49193 =
  18. 18.Digital root of 80804 =
  19. 19.Digital root of 72137 =
  20. 20.Digital root of 86 × 43 =
  21. 21.Digital root of 26279 =
  22. 22.Digital root of 24936 =
  23. 23.Digital root of 63032 =
  24. 24.Digital root of 73290 =
  25. 25.Digital root of 24 × 58 =
  26. 26.Digital root of 41388 =
  27. 27.Digital root of 35285 =
  28. 28.Digital root of 94 × 28 =
  29. 29.Digital root of 97334 =
  30. 30.Digital root of 46921 =
  31. 31.Digital root of 24664 =
  32. 32.Digital root of 10857 =
  33. 33.Digital root of 25 × 17 =
  34. 34.Digital root of 30548 =
  35. 35.Digital root of 69337 =
  36. 36.Digital root of 39 × 36 =
  37. 37.Digital root of 69 × 32 =
  38. 38.Digital root of 85 × 43 =
  39. 39.Digital root of 80082 =
  40. 40.Digital root of 61475 =

Answer key

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

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