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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 538 · 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 34 × 87 =
  2. 2.Digital root of 87919 =
  3. 3.Digital root of 64 × 21 =
  4. 4.Digital root of 63 × 28 =
  5. 5.Digital root of 92423 =
  6. 6.Digital root of 4764 =
  7. 7.Digital root of 81952 =
  8. 8.Digital root of 47 × 61 =
  9. 9.Digital root of 13998 =
  10. 10.Digital root of 48 × 97 =
  11. 11.Digital root of 38 × 16 =
  12. 12.Digital root of 42032 =
  13. 13.Digital root of 42839 =
  14. 14.Digital root of 26616 =
  15. 15.Digital root of 8863 =
  16. 16.Digital root of 75901 =
  17. 17.Digital root of 63 × 38 =
  18. 18.Digital root of 69 × 36 =
  19. 19.Digital root of 4683 =
  20. 20.Digital root of 58691 =
  21. 21.Digital root of 69 × 47 =
  22. 22.Digital root of 1509 =
  23. 23.Digital root of 38672 =
  24. 24.Digital root of 78 × 18 =
  25. 25.Digital root of 64775 =
  26. 26.Digital root of 5440 =
  27. 27.Digital root of 88 × 30 =
  28. 28.Digital root of 48 × 80 =
  29. 29.Digital root of 96865 =
  30. 30.Digital root of 64487 =
  31. 31.Digital root of 41 × 28 =
  32. 32.Digital root of 84118 =
  33. 33.Digital root of 15 × 55 =
  34. 34.Digital root of 36984 =
  35. 35.Digital root of 68 × 20 =
  36. 36.Digital root of 35120 =
  37. 37.Digital root of 76 × 40 =
  38. 38.Digital root of 29180 =
  39. 39.Digital root of 83271 =
  40. 40.Digital root of 97 × 17 =

Answer key

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

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