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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 446 · 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 8568 =
  2. 2.Digital root of 56 × 51 =
  3. 3.Digital root of 28 × 29 =
  4. 4.Digital root of 73326 =
  5. 5.Digital root of 53494 =
  6. 6.Digital root of 50 × 66 =
  7. 7.Digital root of 50026 =
  8. 8.Digital root of 53 × 25 =
  9. 9.Digital root of 69030 =
  10. 10.Digital root of 92 × 41 =
  11. 11.Digital root of 27202 =
  12. 12.Digital root of 37363 =
  13. 13.Digital root of 23725 =
  14. 14.Digital root of 41 × 40 =
  15. 15.Digital root of 12 × 78 =
  16. 16.Digital root of 59 × 18 =
  17. 17.Digital root of 67 × 40 =
  18. 18.Digital root of 42101 =
  19. 19.Digital root of 83 × 39 =
  20. 20.Digital root of 7553 =
  21. 21.Digital root of 69491 =
  22. 22.Digital root of 40 × 28 =
  23. 23.Digital root of 18628 =
  24. 24.Digital root of 37 × 78 =
  25. 25.Digital root of 1955 =
  26. 26.Digital root of 92 × 90 =
  27. 27.Digital root of 6019 =
  28. 28.Digital root of 3586 =
  29. 29.Digital root of 97 × 41 =
  30. 30.Digital root of 63376 =
  31. 31.Digital root of 48 × 58 =
  32. 32.Digital root of 44930 =
  33. 33.Digital root of 28 × 36 =
  34. 34.Digital root of 63204 =
  35. 35.Digital root of 19442 =
  36. 36.Digital root of 77427 =
  37. 37.Digital root of 18 × 84 =
  38. 38.Digital root of 98 × 15 =
  39. 39.Digital root of 41851 =
  40. 40.Digital root of 71973 =

Answer key

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

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