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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 628 · 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 46782 =
  2. 2.Digital root of 35 × 98 =
  3. 3.Digital root of 42779 =
  4. 4.Digital root of 74 × 96 =
  5. 5.Digital root of 28 × 95 =
  6. 6.Digital root of 24781 =
  7. 7.Digital root of 19826 =
  8. 8.Digital root of 34 × 24 =
  9. 9.Digital root of 14 × 18 =
  10. 10.Digital root of 49907 =
  11. 11.Digital root of 62167 =
  12. 12.Digital root of 23 × 24 =
  13. 13.Digital root of 44 × 49 =
  14. 14.Digital root of 6812 =
  15. 15.Digital root of 70 × 72 =
  16. 16.Digital root of 49 × 24 =
  17. 17.Digital root of 80292 =
  18. 18.Digital root of 41834 =
  19. 19.Digital root of 28953 =
  20. 20.Digital root of 98 × 12 =
  21. 21.Digital root of 73 × 87 =
  22. 22.Digital root of 29174 =
  23. 23.Digital root of 87023 =
  24. 24.Digital root of 91 × 26 =
  25. 25.Digital root of 15 × 70 =
  26. 26.Digital root of 12071 =
  27. 27.Digital root of 7647 =
  28. 28.Digital root of 62381 =
  29. 29.Digital root of 23610 =
  30. 30.Digital root of 57842 =
  31. 31.Digital root of 28855 =
  32. 32.Digital root of 39 × 20 =
  33. 33.Digital root of 6616 =
  34. 34.Digital root of 15 × 19 =
  35. 35.Digital root of 23 × 46 =
  36. 36.Digital root of 53375 =
  37. 37.Digital root of 13 × 19 =
  38. 38.Digital root of 11804 =
  39. 39.Digital root of 38 × 26 =
  40. 40.Digital root of 22187 =

Answer key

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

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