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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 146 · 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 61232 =
  2. 2.Digital root of 25 × 24 =
  3. 3.Digital root of 70680 =
  4. 4.Digital root of 63483 =
  5. 5.Digital root of 19731 =
  6. 6.Digital root of 20669 =
  7. 7.Digital root of 29207 =
  8. 8.Digital root of 33 × 28 =
  9. 9.Digital root of 68 × 80 =
  10. 10.Digital root of 80 × 21 =
  11. 11.Digital root of 44803 =
  12. 12.Digital root of 48 × 76 =
  13. 13.Digital root of 79 × 88 =
  14. 14.Digital root of 45041 =
  15. 15.Digital root of 11249 =
  16. 16.Digital root of 57 × 82 =
  17. 17.Digital root of 78979 =
  18. 18.Digital root of 79 × 79 =
  19. 19.Digital root of 33243 =
  20. 20.Digital root of 30 × 22 =
  21. 21.Digital root of 27 × 85 =
  22. 22.Digital root of 31 × 36 =
  23. 23.Digital root of 87564 =
  24. 24.Digital root of 90838 =
  25. 25.Digital root of 90482 =
  26. 26.Digital root of 60 × 74 =
  27. 27.Digital root of 4973 =
  28. 28.Digital root of 26763 =
  29. 29.Digital root of 14 × 33 =
  30. 30.Digital root of 12084 =
  31. 31.Digital root of 83 × 92 =
  32. 32.Digital root of 8072 =
  33. 33.Digital root of 31562 =
  34. 34.Digital root of 6981 =
  35. 35.Digital root of 57656 =
  36. 36.Digital root of 31511 =
  37. 37.Digital root of 14 × 81 =
  38. 38.Digital root of 67345 =
  39. 39.Digital root of 59965 =
  40. 40.Digital root of 65833 =

Answer key

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

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