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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 29 · 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 98958 =
  2. 2.Digital root of 52236 =
  3. 3.Digital root of 48 × 75 =
  4. 4.Digital root of 85471 =
  5. 5.Digital root of 64323 =
  6. 6.Digital root of 57 × 23 =
  7. 7.Digital root of 89 × 47 =
  8. 8.Digital root of 15989 =
  9. 9.Digital root of 62831 =
  10. 10.Digital root of 9081 =
  11. 11.Digital root of 24 × 93 =
  12. 12.Digital root of 69 × 78 =
  13. 13.Digital root of 38 × 72 =
  14. 14.Digital root of 94 × 44 =
  15. 15.Digital root of 43 × 63 =
  16. 16.Digital root of 54937 =
  17. 17.Digital root of 44446 =
  18. 18.Digital root of 30 × 14 =
  19. 19.Digital root of 38 × 89 =
  20. 20.Digital root of 86827 =
  21. 21.Digital root of 59782 =
  22. 22.Digital root of 81900 =
  23. 23.Digital root of 44031 =
  24. 24.Digital root of 61 × 85 =
  25. 25.Digital root of 12442 =
  26. 26.Digital root of 13 × 79 =
  27. 27.Digital root of 10352 =
  28. 28.Digital root of 10571 =
  29. 29.Digital root of 81 × 58 =
  30. 30.Digital root of 29 × 24 =
  31. 31.Digital root of 20 × 42 =
  32. 32.Digital root of 92 × 29 =
  33. 33.Digital root of 49387 =
  34. 34.Digital root of 9093 =
  35. 35.Digital root of 39227 =
  36. 36.Digital root of 58079 =
  37. 37.Digital root of 12342 =
  38. 38.Digital root of 29 × 86 =
  39. 39.Digital root of 36705 =
  40. 40.Digital root of 94 × 45 =

Answer key

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

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