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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 274 · 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 7175 =
  2. 2.Digital root of 294 =
  3. 3.Digital root of 28 × 56 =
  4. 4.Digital root of 62 × 71 =
  5. 5.Digital root of 45715 =
  6. 6.Digital root of 98540 =
  7. 7.Digital root of 99 × 84 =
  8. 8.Digital root of 13767 =
  9. 9.Digital root of 33805 =
  10. 10.Digital root of 34 × 35 =
  11. 11.Digital root of 16 × 66 =
  12. 12.Digital root of 11983 =
  13. 13.Digital root of 38 × 12 =
  14. 14.Digital root of 83305 =
  15. 15.Digital root of 92 × 76 =
  16. 16.Digital root of 30323 =
  17. 17.Digital root of 24784 =
  18. 18.Digital root of 34 × 17 =
  19. 19.Digital root of 78583 =
  20. 20.Digital root of 67 × 60 =
  21. 21.Digital root of 20 × 33 =
  22. 22.Digital root of 72 × 88 =
  23. 23.Digital root of 64821 =
  24. 24.Digital root of 31904 =
  25. 25.Digital root of 81 × 16 =
  26. 26.Digital root of 45 × 86 =
  27. 27.Digital root of 56 × 31 =
  28. 28.Digital root of 66477 =
  29. 29.Digital root of 68 × 70 =
  30. 30.Digital root of 77 × 96 =
  31. 31.Digital root of 43202 =
  32. 32.Digital root of 54 × 64 =
  33. 33.Digital root of 18 × 59 =
  34. 34.Digital root of 34 × 21 =
  35. 35.Digital root of 20 × 59 =
  36. 36.Digital root of 9685 =
  37. 37.Digital root of 15335 =
  38. 38.Digital root of 78722 =
  39. 39.Digital root of 49 × 51 =
  40. 40.Digital root of 18615 =

Answer key

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

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