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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 862 · 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 23804 =
  2. 2.Digital root of 91315 =
  3. 3.Digital root of 80833 =
  4. 4.Digital root of 45 × 85 =
  5. 5.Digital root of 73931 =
  6. 6.Digital root of 63189 =
  7. 7.Digital root of 10906 =
  8. 8.Digital root of 35 × 54 =
  9. 9.Digital root of 78131 =
  10. 10.Digital root of 49647 =
  11. 11.Digital root of 33900 =
  12. 12.Digital root of 50297 =
  13. 13.Digital root of 29 × 19 =
  14. 14.Digital root of 63105 =
  15. 15.Digital root of 81611 =
  16. 16.Digital root of 24686 =
  17. 17.Digital root of 12 × 18 =
  18. 18.Digital root of 77 × 87 =
  19. 19.Digital root of 82 × 16 =
  20. 20.Digital root of 55442 =
  21. 21.Digital root of 15 × 84 =
  22. 22.Digital root of 28 × 50 =
  23. 23.Digital root of 34 × 46 =
  24. 24.Digital root of 41776 =
  25. 25.Digital root of 43973 =
  26. 26.Digital root of 71 × 30 =
  27. 27.Digital root of 64438 =
  28. 28.Digital root of 43 × 75 =
  29. 29.Digital root of 66810 =
  30. 30.Digital root of 95838 =
  31. 31.Digital root of 27004 =
  32. 32.Digital root of 28921 =
  33. 33.Digital root of 71968 =
  34. 34.Digital root of 77 × 25 =
  35. 35.Digital root of 33 × 29 =
  36. 36.Digital root of 69 × 14 =
  37. 37.Digital root of 14 × 48 =
  38. 38.Digital root of 13 × 96 =
  39. 39.Digital root of 63810 =
  40. 40.Digital root of 91 × 39 =

Answer key

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

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