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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 625 · 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 75764 =
  2. 2.Digital root of 92 × 93 =
  3. 3.Digital root of 81 × 20 =
  4. 4.Digital root of 85 × 41 =
  5. 5.Digital root of 89501 =
  6. 6.Digital root of 68 × 43 =
  7. 7.Digital root of 38504 =
  8. 8.Digital root of 18289 =
  9. 9.Digital root of 16868 =
  10. 10.Digital root of 18 × 77 =
  11. 11.Digital root of 74130 =
  12. 12.Digital root of 53 × 58 =
  13. 13.Digital root of 13962 =
  14. 14.Digital root of 64373 =
  15. 15.Digital root of 71644 =
  16. 16.Digital root of 5428 =
  17. 17.Digital root of 78381 =
  18. 18.Digital root of 13 × 77 =
  19. 19.Digital root of 9332 =
  20. 20.Digital root of 91814 =
  21. 21.Digital root of 59814 =
  22. 22.Digital root of 8332 =
  23. 23.Digital root of 87388 =
  24. 24.Digital root of 7509 =
  25. 25.Digital root of 48763 =
  26. 26.Digital root of 25033 =
  27. 27.Digital root of 13 × 36 =
  28. 28.Digital root of 37086 =
  29. 29.Digital root of 51 × 48 =
  30. 30.Digital root of 51250 =
  31. 31.Digital root of 75452 =
  32. 32.Digital root of 33 × 44 =
  33. 33.Digital root of 37229 =
  34. 34.Digital root of 60875 =
  35. 35.Digital root of 96 × 72 =
  36. 36.Digital root of 98974 =
  37. 37.Digital root of 84079 =
  38. 38.Digital root of 1791 =
  39. 39.Digital root of 41 × 36 =
  40. 40.Digital root of 23679 =

Answer key

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

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