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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 826 · 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 24 × 16 =
  2. 2.Digital root of 21 × 95 =
  3. 3.Digital root of 86636 =
  4. 4.Digital root of 35684 =
  5. 5.Digital root of 66 × 32 =
  6. 6.Digital root of 1056 =
  7. 7.Digital root of 11921 =
  8. 8.Digital root of 79 × 59 =
  9. 9.Digital root of 46762 =
  10. 10.Digital root of 64077 =
  11. 11.Digital root of 43005 =
  12. 12.Digital root of 55 × 98 =
  13. 13.Digital root of 23 × 19 =
  14. 14.Digital root of 33404 =
  15. 15.Digital root of 55 × 12 =
  16. 16.Digital root of 54 × 16 =
  17. 17.Digital root of 20535 =
  18. 18.Digital root of 27 × 29 =
  19. 19.Digital root of 14518 =
  20. 20.Digital root of 40 × 64 =
  21. 21.Digital root of 73689 =
  22. 22.Digital root of 12240 =
  23. 23.Digital root of 35412 =
  24. 24.Digital root of 3196 =
  25. 25.Digital root of 37 × 40 =
  26. 26.Digital root of 95899 =
  27. 27.Digital root of 82186 =
  28. 28.Digital root of 31523 =
  29. 29.Digital root of 52902 =
  30. 30.Digital root of 1560 =
  31. 31.Digital root of 96 × 79 =
  32. 32.Digital root of 82244 =
  33. 33.Digital root of 57 × 72 =
  34. 34.Digital root of 88 × 51 =
  35. 35.Digital root of 65 × 72 =
  36. 36.Digital root of 85 × 30 =
  37. 37.Digital root of 99444 =
  38. 38.Digital root of 8132 =
  39. 39.Digital root of 98 × 51 =
  40. 40.Digital root of 94560 =

Answer key

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

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