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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 508 · 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 80500 =
  2. 2.Digital root of 59936 =
  3. 3.Digital root of 19740 =
  4. 4.Digital root of 14 × 34 =
  5. 5.Digital root of 39 × 56 =
  6. 6.Digital root of 75 × 29 =
  7. 7.Digital root of 68496 =
  8. 8.Digital root of 57 × 25 =
  9. 9.Digital root of 52711 =
  10. 10.Digital root of 13698 =
  11. 11.Digital root of 54 × 40 =
  12. 12.Digital root of 91283 =
  13. 13.Digital root of 12 × 21 =
  14. 14.Digital root of 57 × 31 =
  15. 15.Digital root of 71 × 93 =
  16. 16.Digital root of 73911 =
  17. 17.Digital root of 44126 =
  18. 18.Digital root of 90 × 39 =
  19. 19.Digital root of 69 × 50 =
  20. 20.Digital root of 83955 =
  21. 21.Digital root of 59 × 55 =
  22. 22.Digital root of 31 × 34 =
  23. 23.Digital root of 69901 =
  24. 24.Digital root of 13 × 60 =
  25. 25.Digital root of 29 × 40 =
  26. 26.Digital root of 21325 =
  27. 27.Digital root of 98 × 59 =
  28. 28.Digital root of 16075 =
  29. 29.Digital root of 34295 =
  30. 30.Digital root of 12 × 18 =
  31. 31.Digital root of 25 × 68 =
  32. 32.Digital root of 45 × 15 =
  33. 33.Digital root of 40 × 33 =
  34. 34.Digital root of 51486 =
  35. 35.Digital root of 92 × 41 =
  36. 36.Digital root of 57744 =
  37. 37.Digital root of 43035 =
  38. 38.Digital root of 67453 =
  39. 39.Digital root of 1626 =
  40. 40.Digital root of 10142 =

Answer key

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

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