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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 34 · 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 74 × 49 =
  2. 2.Digital root of 84973 =
  3. 3.Digital root of 33423 =
  4. 4.Digital root of 16 × 16 =
  5. 5.Digital root of 79988 =
  6. 6.Digital root of 95298 =
  7. 7.Digital root of 90505 =
  8. 8.Digital root of 50 × 14 =
  9. 9.Digital root of 61290 =
  10. 10.Digital root of 92980 =
  11. 11.Digital root of 23 × 14 =
  12. 12.Digital root of 88 × 80 =
  13. 13.Digital root of 91 × 28 =
  14. 14.Digital root of 12063 =
  15. 15.Digital root of 96 × 14 =
  16. 16.Digital root of 84 × 63 =
  17. 17.Digital root of 53 × 17 =
  18. 18.Digital root of 54003 =
  19. 19.Digital root of 10849 =
  20. 20.Digital root of 1763 =
  21. 21.Digital root of 20809 =
  22. 22.Digital root of 83 × 81 =
  23. 23.Digital root of 16883 =
  24. 24.Digital root of 83140 =
  25. 25.Digital root of 60310 =
  26. 26.Digital root of 79 × 62 =
  27. 27.Digital root of 17 × 27 =
  28. 28.Digital root of 34 × 84 =
  29. 29.Digital root of 97574 =
  30. 30.Digital root of 44699 =
  31. 31.Digital root of 49012 =
  32. 32.Digital root of 85822 =
  33. 33.Digital root of 18 × 36 =
  34. 34.Digital root of 15843 =
  35. 35.Digital root of 67 × 99 =
  36. 36.Digital root of 50176 =
  37. 37.Digital root of 56 × 24 =
  38. 38.Digital root of 27 × 97 =
  39. 39.Digital root of 14933 =
  40. 40.Digital root of 7797 =

Answer key

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

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