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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 327 · 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 2287 =
  2. 2.Digital root of 30 × 24 =
  3. 3.Digital root of 38320 =
  4. 4.Digital root of 14 × 22 =
  5. 5.Digital root of 1669 =
  6. 6.Digital root of 47909 =
  7. 7.Digital root of 17 × 75 =
  8. 8.Digital root of 11740 =
  9. 9.Digital root of 76 × 93 =
  10. 10.Digital root of 23 × 22 =
  11. 11.Digital root of 19 × 76 =
  12. 12.Digital root of 73740 =
  13. 13.Digital root of 34 × 38 =
  14. 14.Digital root of 52691 =
  15. 15.Digital root of 6876 =
  16. 16.Digital root of 35 × 78 =
  17. 17.Digital root of 62 × 54 =
  18. 18.Digital root of 77640 =
  19. 19.Digital root of 87 × 65 =
  20. 20.Digital root of 11500 =
  21. 21.Digital root of 90 × 36 =
  22. 22.Digital root of 882 =
  23. 23.Digital root of 13047 =
  24. 24.Digital root of 68 × 13 =
  25. 25.Digital root of 33 × 82 =
  26. 26.Digital root of 88 × 72 =
  27. 27.Digital root of 47 × 23 =
  28. 28.Digital root of 86886 =
  29. 29.Digital root of 18 × 93 =
  30. 30.Digital root of 98 × 80 =
  31. 31.Digital root of 47 × 75 =
  32. 32.Digital root of 16558 =
  33. 33.Digital root of 23 × 45 =
  34. 34.Digital root of 76 × 15 =
  35. 35.Digital root of 37 × 72 =
  36. 36.Digital root of 96575 =
  37. 37.Digital root of 23609 =
  38. 38.Digital root of 58221 =
  39. 39.Digital root of 14 × 93 =
  40. 40.Digital root of 53295 =

Answer key

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

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