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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 951 · 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 40339 =
  2. 2.Digital root of 49 × 80 =
  3. 3.Digital root of 29443 =
  4. 4.Digital root of 71134 =
  5. 5.Digital root of 64556 =
  6. 6.Digital root of 27445 =
  7. 7.Digital root of 25 × 27 =
  8. 8.Digital root of 81 × 95 =
  9. 9.Digital root of 15415 =
  10. 10.Digital root of 74 × 26 =
  11. 11.Digital root of 51 × 63 =
  12. 12.Digital root of 51704 =
  13. 13.Digital root of 82780 =
  14. 14.Digital root of 94 × 35 =
  15. 15.Digital root of 42 × 47 =
  16. 16.Digital root of 1316 =
  17. 17.Digital root of 76915 =
  18. 18.Digital root of 32 × 56 =
  19. 19.Digital root of 63 × 43 =
  20. 20.Digital root of 51 × 63 =
  21. 21.Digital root of 38 × 12 =
  22. 22.Digital root of 59480 =
  23. 23.Digital root of 87482 =
  24. 24.Digital root of 66 × 18 =
  25. 25.Digital root of 31 × 79 =
  26. 26.Digital root of 5736 =
  27. 27.Digital root of 56 × 22 =
  28. 28.Digital root of 68540 =
  29. 29.Digital root of 96099 =
  30. 30.Digital root of 50370 =
  31. 31.Digital root of 36999 =
  32. 32.Digital root of 28517 =
  33. 33.Digital root of 84 × 44 =
  34. 34.Digital root of 85314 =
  35. 35.Digital root of 24238 =
  36. 36.Digital root of 26829 =
  37. 37.Digital root of 94 × 19 =
  38. 38.Digital root of 20464 =
  39. 39.Digital root of 31 × 69 =
  40. 40.Digital root of 27585 =

Answer key

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

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