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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 624 · 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 54 × 71 =
  2. 2.Digital root of 303 =
  3. 3.Digital root of 20219 =
  4. 4.Digital root of 61013 =
  5. 5.Digital root of 44684 =
  6. 6.Digital root of 49020 =
  7. 7.Digital root of 98503 =
  8. 8.Digital root of 77082 =
  9. 9.Digital root of 64133 =
  10. 10.Digital root of 45 × 68 =
  11. 11.Digital root of 21678 =
  12. 12.Digital root of 54392 =
  13. 13.Digital root of 70 × 27 =
  14. 14.Digital root of 8941 =
  15. 15.Digital root of 54154 =
  16. 16.Digital root of 87467 =
  17. 17.Digital root of 5357 =
  18. 18.Digital root of 56 × 71 =
  19. 19.Digital root of 91 × 55 =
  20. 20.Digital root of 27 × 66 =
  21. 21.Digital root of 96061 =
  22. 22.Digital root of 38 × 53 =
  23. 23.Digital root of 20 × 83 =
  24. 24.Digital root of 72 × 21 =
  25. 25.Digital root of 26626 =
  26. 26.Digital root of 62 × 28 =
  27. 27.Digital root of 13989 =
  28. 28.Digital root of 40 × 77 =
  29. 29.Digital root of 19533 =
  30. 30.Digital root of 83 × 80 =
  31. 31.Digital root of 4638 =
  32. 32.Digital root of 75051 =
  33. 33.Digital root of 86116 =
  34. 34.Digital root of 14858 =
  35. 35.Digital root of 89322 =
  36. 36.Digital root of 38841 =
  37. 37.Digital root of 19 × 44 =
  38. 38.Digital root of 80 × 84 =
  39. 39.Digital root of 70366 =
  40. 40.Digital root of 16052 =

Answer key

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

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