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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 76 · 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 46330 =
  2. 2.Digital root of 76 × 64 =
  3. 3.Digital root of 95 × 20 =
  4. 4.Digital root of 48 × 82 =
  5. 5.Digital root of 40331 =
  6. 6.Digital root of 14 × 59 =
  7. 7.Digital root of 84 × 60 =
  8. 8.Digital root of 80 × 31 =
  9. 9.Digital root of 94 × 39 =
  10. 10.Digital root of 31 × 90 =
  11. 11.Digital root of 63 × 14 =
  12. 12.Digital root of 895 =
  13. 13.Digital root of 94926 =
  14. 14.Digital root of 82023 =
  15. 15.Digital root of 9728 =
  16. 16.Digital root of 73545 =
  17. 17.Digital root of 50490 =
  18. 18.Digital root of 18670 =
  19. 19.Digital root of 92101 =
  20. 20.Digital root of 36823 =
  21. 21.Digital root of 49 × 60 =
  22. 22.Digital root of 9416 =
  23. 23.Digital root of 21 × 59 =
  24. 24.Digital root of 52549 =
  25. 25.Digital root of 22 × 50 =
  26. 26.Digital root of 47459 =
  27. 27.Digital root of 95 × 98 =
  28. 28.Digital root of 60 × 50 =
  29. 29.Digital root of 43 × 91 =
  30. 30.Digital root of 39651 =
  31. 31.Digital root of 63360 =
  32. 32.Digital root of 99818 =
  33. 33.Digital root of 49438 =
  34. 34.Digital root of 94 × 83 =
  35. 35.Digital root of 6798 =
  36. 36.Digital root of 81 × 19 =
  37. 37.Digital root of 84 × 60 =
  38. 38.Digital root of 49 × 25 =
  39. 39.Digital root of 83 × 62 =
  40. 40.Digital root of 58 × 98 =

Answer key

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

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