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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 3 · 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 82072 =
  2. 2.Digital root of 66 × 59 =
  3. 3.Digital root of 92101 =
  4. 4.Digital root of 72 × 92 =
  5. 5.Digital root of 4133 =
  6. 6.Digital root of 24817 =
  7. 7.Digital root of 26 × 32 =
  8. 8.Digital root of 86 × 90 =
  9. 9.Digital root of 54 × 42 =
  10. 10.Digital root of 30 × 41 =
  11. 11.Digital root of 13 × 17 =
  12. 12.Digital root of 67636 =
  13. 13.Digital root of 94 × 24 =
  14. 14.Digital root of 17 × 36 =
  15. 15.Digital root of 59115 =
  16. 16.Digital root of 5669 =
  17. 17.Digital root of 89 × 61 =
  18. 18.Digital root of 37 × 50 =
  19. 19.Digital root of 96776 =
  20. 20.Digital root of 70 × 64 =
  21. 21.Digital root of 97586 =
  22. 22.Digital root of 46155 =
  23. 23.Digital root of 60567 =
  24. 24.Digital root of 26120 =
  25. 25.Digital root of 17 × 24 =
  26. 26.Digital root of 24269 =
  27. 27.Digital root of 64 × 89 =
  28. 28.Digital root of 49 × 58 =
  29. 29.Digital root of 32 × 92 =
  30. 30.Digital root of 78 × 62 =
  31. 31.Digital root of 84490 =
  32. 32.Digital root of 26 × 16 =
  33. 33.Digital root of 67967 =
  34. 34.Digital root of 17061 =
  35. 35.Digital root of 11945 =
  36. 36.Digital root of 95304 =
  37. 37.Digital root of 96007 =
  38. 38.Digital root of 67 × 72 =
  39. 39.Digital root of 33912 =
  40. 40.Digital root of 25 × 24 =

Answer key

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

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