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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 82 · 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 62980 =
  2. 2.Digital root of 63 × 72 =
  3. 3.Digital root of 24844 =
  4. 4.Digital root of 8262 =
  5. 5.Digital root of 59 × 29 =
  6. 6.Digital root of 83806 =
  7. 7.Digital root of 97795 =
  8. 8.Digital root of 78 × 23 =
  9. 9.Digital root of 83768 =
  10. 10.Digital root of 91087 =
  11. 11.Digital root of 54805 =
  12. 12.Digital root of 49 × 61 =
  13. 13.Digital root of 94 × 14 =
  14. 14.Digital root of 57294 =
  15. 15.Digital root of 20 × 26 =
  16. 16.Digital root of 68814 =
  17. 17.Digital root of 81 × 31 =
  18. 18.Digital root of 36 × 92 =
  19. 19.Digital root of 59 × 12 =
  20. 20.Digital root of 32 × 33 =
  21. 21.Digital root of 67871 =
  22. 22.Digital root of 76388 =
  23. 23.Digital root of 75672 =
  24. 24.Digital root of 96846 =
  25. 25.Digital root of 66266 =
  26. 26.Digital root of 97767 =
  27. 27.Digital root of 88 × 46 =
  28. 28.Digital root of 36 × 99 =
  29. 29.Digital root of 95191 =
  30. 30.Digital root of 74 × 95 =
  31. 31.Digital root of 55 × 38 =
  32. 32.Digital root of 54 × 26 =
  33. 33.Digital root of 18 × 13 =
  34. 34.Digital root of 31500 =
  35. 35.Digital root of 13 × 77 =
  36. 36.Digital root of 39 × 94 =
  37. 37.Digital root of 3460 =
  38. 38.Digital root of 68 × 78 =
  39. 39.Digital root of 92902 =
  40. 40.Digital root of 14717 =

Answer key

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

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