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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 908 · 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 63 × 16 =
  2. 2.Digital root of 56113 =
  3. 3.Digital root of 29953 =
  4. 4.Digital root of 15 × 45 =
  5. 5.Digital root of 72981 =
  6. 6.Digital root of 39463 =
  7. 7.Digital root of 91887 =
  8. 8.Digital root of 76874 =
  9. 9.Digital root of 45225 =
  10. 10.Digital root of 39 × 50 =
  11. 11.Digital root of 27 × 73 =
  12. 12.Digital root of 56577 =
  13. 13.Digital root of 36365 =
  14. 14.Digital root of 58 × 45 =
  15. 15.Digital root of 65 × 26 =
  16. 16.Digital root of 77 × 60 =
  17. 17.Digital root of 68663 =
  18. 18.Digital root of 32 × 92 =
  19. 19.Digital root of 46669 =
  20. 20.Digital root of 53 × 41 =
  21. 21.Digital root of 63427 =
  22. 22.Digital root of 24080 =
  23. 23.Digital root of 92 × 39 =
  24. 24.Digital root of 21 × 23 =
  25. 25.Digital root of 86 × 86 =
  26. 26.Digital root of 75 × 34 =
  27. 27.Digital root of 96 × 27 =
  28. 28.Digital root of 46655 =
  29. 29.Digital root of 80947 =
  30. 30.Digital root of 94122 =
  31. 31.Digital root of 79181 =
  32. 32.Digital root of 66 × 50 =
  33. 33.Digital root of 35 × 32 =
  34. 34.Digital root of 85177 =
  35. 35.Digital root of 79 × 46 =
  36. 36.Digital root of 49 × 92 =
  37. 37.Digital root of 28 × 49 =
  38. 38.Digital root of 43049 =
  39. 39.Digital root of 15072 =
  40. 40.Digital root of 46301 =

Answer key

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

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