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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 32 · 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 26 × 17 =
  2. 2.Digital root of 19038 =
  3. 3.Digital root of 28 × 27 =
  4. 4.Digital root of 78643 =
  5. 5.Digital root of 89 × 56 =
  6. 6.Digital root of 6386 =
  7. 7.Digital root of 74 × 76 =
  8. 8.Digital root of 50 × 95 =
  9. 9.Digital root of 10891 =
  10. 10.Digital root of 8466 =
  11. 11.Digital root of 63 × 40 =
  12. 12.Digital root of 15 × 99 =
  13. 13.Digital root of 37 × 50 =
  14. 14.Digital root of 88 × 19 =
  15. 15.Digital root of 75 × 37 =
  16. 16.Digital root of 77 × 30 =
  17. 17.Digital root of 86 × 24 =
  18. 18.Digital root of 3704 =
  19. 19.Digital root of 79298 =
  20. 20.Digital root of 42147 =
  21. 21.Digital root of 71 × 49 =
  22. 22.Digital root of 91 × 87 =
  23. 23.Digital root of 93 × 34 =
  24. 24.Digital root of 5631 =
  25. 25.Digital root of 46 × 72 =
  26. 26.Digital root of 59 × 13 =
  27. 27.Digital root of 5377 =
  28. 28.Digital root of 97 × 17 =
  29. 29.Digital root of 19 × 96 =
  30. 30.Digital root of 71 × 57 =
  31. 31.Digital root of 71283 =
  32. 32.Digital root of 17 × 96 =
  33. 33.Digital root of 43 × 12 =
  34. 34.Digital root of 52 × 12 =
  35. 35.Digital root of 78448 =
  36. 36.Digital root of 8062 =
  37. 37.Digital root of 5162 =
  38. 38.Digital root of 70307 =
  39. 39.Digital root of 85 × 40 =
  40. 40.Digital root of 14482 =

Answer key

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

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