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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 995 · 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 35024 =
  2. 2.Digital root of 40 × 22 =
  3. 3.Digital root of 30351 =
  4. 4.Digital root of 47250 =
  5. 5.Digital root of 41478 =
  6. 6.Digital root of 37 × 32 =
  7. 7.Digital root of 45342 =
  8. 8.Digital root of 12707 =
  9. 9.Digital root of 45 × 29 =
  10. 10.Digital root of 28892 =
  11. 11.Digital root of 7691 =
  12. 12.Digital root of 7020 =
  13. 13.Digital root of 35 × 82 =
  14. 14.Digital root of 36715 =
  15. 15.Digital root of 1041 =
  16. 16.Digital root of 73090 =
  17. 17.Digital root of 38502 =
  18. 18.Digital root of 4891 =
  19. 19.Digital root of 51 × 13 =
  20. 20.Digital root of 54 × 60 =
  21. 21.Digital root of 62629 =
  22. 22.Digital root of 98748 =
  23. 23.Digital root of 33881 =
  24. 24.Digital root of 93223 =
  25. 25.Digital root of 5352 =
  26. 26.Digital root of 12 × 91 =
  27. 27.Digital root of 77 × 69 =
  28. 28.Digital root of 74 × 36 =
  29. 29.Digital root of 55 × 77 =
  30. 30.Digital root of 72 × 30 =
  31. 31.Digital root of 73 × 65 =
  32. 32.Digital root of 5552 =
  33. 33.Digital root of 6824 =
  34. 34.Digital root of 37549 =
  35. 35.Digital root of 9817 =
  36. 36.Digital root of 26 × 57 =
  37. 37.Digital root of 29272 =
  38. 38.Digital root of 13965 =
  39. 39.Digital root of 36 × 22 =
  40. 40.Digital root of 3570 =

Answer key

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

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