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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 339 · 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 16188 =
  2. 2.Digital root of 26 × 17 =
  3. 3.Digital root of 66 × 70 =
  4. 4.Digital root of 82 × 22 =
  5. 5.Digital root of 37 × 13 =
  6. 6.Digital root of 14745 =
  7. 7.Digital root of 17822 =
  8. 8.Digital root of 78677 =
  9. 9.Digital root of 13298 =
  10. 10.Digital root of 3186 =
  11. 11.Digital root of 51661 =
  12. 12.Digital root of 95 × 17 =
  13. 13.Digital root of 17609 =
  14. 14.Digital root of 14901 =
  15. 15.Digital root of 73 × 27 =
  16. 16.Digital root of 19129 =
  17. 17.Digital root of 30 × 53 =
  18. 18.Digital root of 67 × 44 =
  19. 19.Digital root of 28 × 86 =
  20. 20.Digital root of 40438 =
  21. 21.Digital root of 55773 =
  22. 22.Digital root of 15871 =
  23. 23.Digital root of 37 × 44 =
  24. 24.Digital root of 72570 =
  25. 25.Digital root of 77841 =
  26. 26.Digital root of 93962 =
  27. 27.Digital root of 58306 =
  28. 28.Digital root of 58456 =
  29. 29.Digital root of 32824 =
  30. 30.Digital root of 75143 =
  31. 31.Digital root of 36 × 13 =
  32. 32.Digital root of 85965 =
  33. 33.Digital root of 75 × 73 =
  34. 34.Digital root of 26198 =
  35. 35.Digital root of 53576 =
  36. 36.Digital root of 22287 =
  37. 37.Digital root of 14253 =
  38. 38.Digital root of 67 × 69 =
  39. 39.Digital root of 57363 =
  40. 40.Digital root of 39 × 84 =

Answer key

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

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