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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 524 · 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 48025 =
  2. 2.Digital root of 30 × 57 =
  3. 3.Digital root of 90 × 12 =
  4. 4.Digital root of 47770 =
  5. 5.Digital root of 29 × 16 =
  6. 6.Digital root of 22 × 61 =
  7. 7.Digital root of 30 × 18 =
  8. 8.Digital root of 98229 =
  9. 9.Digital root of 43247 =
  10. 10.Digital root of 19 × 30 =
  11. 11.Digital root of 49459 =
  12. 12.Digital root of 82 × 26 =
  13. 13.Digital root of 25 × 21 =
  14. 14.Digital root of 58 × 69 =
  15. 15.Digital root of 73956 =
  16. 16.Digital root of 28 × 80 =
  17. 17.Digital root of 16356 =
  18. 18.Digital root of 42631 =
  19. 19.Digital root of 45 × 66 =
  20. 20.Digital root of 91073 =
  21. 21.Digital root of 32 × 32 =
  22. 22.Digital root of 60 × 83 =
  23. 23.Digital root of 969 =
  24. 24.Digital root of 77627 =
  25. 25.Digital root of 58545 =
  26. 26.Digital root of 61 × 71 =
  27. 27.Digital root of 71884 =
  28. 28.Digital root of 12925 =
  29. 29.Digital root of 33 × 22 =
  30. 30.Digital root of 54 × 17 =
  31. 31.Digital root of 52292 =
  32. 32.Digital root of 6039 =
  33. 33.Digital root of 46 × 26 =
  34. 34.Digital root of 54462 =
  35. 35.Digital root of 50 × 91 =
  36. 36.Digital root of 28 × 36 =
  37. 37.Digital root of 43854 =
  38. 38.Digital root of 9885 =
  39. 39.Digital root of 11071 =
  40. 40.Digital root of 5122 =

Answer key

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

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