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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 963 · 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 67 × 31 =
  2. 2.Digital root of 51 × 87 =
  3. 3.Digital root of 26948 =
  4. 4.Digital root of 84 × 33 =
  5. 5.Digital root of 41 × 55 =
  6. 6.Digital root of 14646 =
  7. 7.Digital root of 18887 =
  8. 8.Digital root of 50 × 81 =
  9. 9.Digital root of 95 × 35 =
  10. 10.Digital root of 75 × 79 =
  11. 11.Digital root of 37918 =
  12. 12.Digital root of 9694 =
  13. 13.Digital root of 77734 =
  14. 14.Digital root of 58835 =
  15. 15.Digital root of 47 × 23 =
  16. 16.Digital root of 50941 =
  17. 17.Digital root of 82396 =
  18. 18.Digital root of 83955 =
  19. 19.Digital root of 56 × 36 =
  20. 20.Digital root of 59 × 30 =
  21. 21.Digital root of 11107 =
  22. 22.Digital root of 26 × 73 =
  23. 23.Digital root of 7465 =
  24. 24.Digital root of 9256 =
  25. 25.Digital root of 39807 =
  26. 26.Digital root of 47 × 86 =
  27. 27.Digital root of 20310 =
  28. 28.Digital root of 76 × 44 =
  29. 29.Digital root of 33 × 52 =
  30. 30.Digital root of 32 × 37 =
  31. 31.Digital root of 63711 =
  32. 32.Digital root of 75398 =
  33. 33.Digital root of 29677 =
  34. 34.Digital root of 52 × 65 =
  35. 35.Digital root of 11859 =
  36. 36.Digital root of 85 × 15 =
  37. 37.Digital root of 49905 =
  38. 38.Digital root of 82618 =
  39. 39.Digital root of 90 × 62 =
  40. 40.Digital root of 40416 =

Answer key

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

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