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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 70 · 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 49561 =
  2. 2.Digital root of 93218 =
  3. 3.Digital root of 40249 =
  4. 4.Digital root of 44 × 66 =
  5. 5.Digital root of 66 × 14 =
  6. 6.Digital root of 15 × 15 =
  7. 7.Digital root of 75 × 60 =
  8. 8.Digital root of 25 × 83 =
  9. 9.Digital root of 2315 =
  10. 10.Digital root of 22 × 95 =
  11. 11.Digital root of 37 × 78 =
  12. 12.Digital root of 74 × 16 =
  13. 13.Digital root of 29563 =
  14. 14.Digital root of 30 × 57 =
  15. 15.Digital root of 35 × 91 =
  16. 16.Digital root of 26 × 96 =
  17. 17.Digital root of 97 × 76 =
  18. 18.Digital root of 55 × 46 =
  19. 19.Digital root of 93924 =
  20. 20.Digital root of 56 × 91 =
  21. 21.Digital root of 11583 =
  22. 22.Digital root of 69 × 51 =
  23. 23.Digital root of 89969 =
  24. 24.Digital root of 69 × 82 =
  25. 25.Digital root of 52687 =
  26. 26.Digital root of 34 × 25 =
  27. 27.Digital root of 71944 =
  28. 28.Digital root of 63184 =
  29. 29.Digital root of 48 × 22 =
  30. 30.Digital root of 33 × 42 =
  31. 31.Digital root of 70 × 58 =
  32. 32.Digital root of 40188 =
  33. 33.Digital root of 33038 =
  34. 34.Digital root of 58 × 93 =
  35. 35.Digital root of 60998 =
  36. 36.Digital root of 90616 =
  37. 37.Digital root of 18205 =
  38. 38.Digital root of 60282 =
  39. 39.Digital root of 72660 =
  40. 40.Digital root of 73962 =

Answer key

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

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