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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 711 · 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 56 × 24 =
  2. 2.Digital root of 50677 =
  3. 3.Digital root of 62116 =
  4. 4.Digital root of 22158 =
  5. 5.Digital root of 74 × 33 =
  6. 6.Digital root of 56393 =
  7. 7.Digital root of 89401 =
  8. 8.Digital root of 16 × 36 =
  9. 9.Digital root of 45 × 66 =
  10. 10.Digital root of 8889 =
  11. 11.Digital root of 72714 =
  12. 12.Digital root of 77 × 49 =
  13. 13.Digital root of 22895 =
  14. 14.Digital root of 32 × 31 =
  15. 15.Digital root of 16 × 88 =
  16. 16.Digital root of 51 × 34 =
  17. 17.Digital root of 86316 =
  18. 18.Digital root of 49 × 40 =
  19. 19.Digital root of 34450 =
  20. 20.Digital root of 75686 =
  21. 21.Digital root of 85749 =
  22. 22.Digital root of 37589 =
  23. 23.Digital root of 77 × 91 =
  24. 24.Digital root of 84 × 61 =
  25. 25.Digital root of 77 × 84 =
  26. 26.Digital root of 59 × 59 =
  27. 27.Digital root of 96672 =
  28. 28.Digital root of 34 × 36 =
  29. 29.Digital root of 17 × 42 =
  30. 30.Digital root of 85090 =
  31. 31.Digital root of 39 × 19 =
  32. 32.Digital root of 25 × 52 =
  33. 33.Digital root of 69 × 52 =
  34. 34.Digital root of 11092 =
  35. 35.Digital root of 23365 =
  36. 36.Digital root of 65 × 12 =
  37. 37.Digital root of 64162 =
  38. 38.Digital root of 5752 =
  39. 39.Digital root of 74456 =
  40. 40.Digital root of 44 × 13 =

Answer key

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

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