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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 328 · 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 28000 =
  2. 2.Digital root of 76238 =
  3. 3.Digital root of 65 × 16 =
  4. 4.Digital root of 43754 =
  5. 5.Digital root of 67937 =
  6. 6.Digital root of 8545 =
  7. 7.Digital root of 36 × 78 =
  8. 8.Digital root of 14 × 34 =
  9. 9.Digital root of 41 × 42 =
  10. 10.Digital root of 75 × 21 =
  11. 11.Digital root of 67 × 21 =
  12. 12.Digital root of 14872 =
  13. 13.Digital root of 86438 =
  14. 14.Digital root of 73209 =
  15. 15.Digital root of 14 × 47 =
  16. 16.Digital root of 45 × 73 =
  17. 17.Digital root of 80313 =
  18. 18.Digital root of 25533 =
  19. 19.Digital root of 74 × 49 =
  20. 20.Digital root of 95 × 69 =
  21. 21.Digital root of 49148 =
  22. 22.Digital root of 44 × 97 =
  23. 23.Digital root of 15 × 79 =
  24. 24.Digital root of 12803 =
  25. 25.Digital root of 62413 =
  26. 26.Digital root of 20 × 16 =
  27. 27.Digital root of 88 × 34 =
  28. 28.Digital root of 37963 =
  29. 29.Digital root of 74106 =
  30. 30.Digital root of 3750 =
  31. 31.Digital root of 26 × 84 =
  32. 32.Digital root of 74 × 59 =
  33. 33.Digital root of 40073 =
  34. 34.Digital root of 93766 =
  35. 35.Digital root of 5605 =
  36. 36.Digital root of 6451 =
  37. 37.Digital root of 37286 =
  38. 38.Digital root of 87493 =
  39. 39.Digital root of 12903 =
  40. 40.Digital root of 88324 =

Answer key

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

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