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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 761 · 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 57333 =
  2. 2.Digital root of 21 × 63 =
  3. 3.Digital root of 75177 =
  4. 4.Digital root of 26 × 30 =
  5. 5.Digital root of 14 × 25 =
  6. 6.Digital root of 49729 =
  7. 7.Digital root of 32456 =
  8. 8.Digital root of 29472 =
  9. 9.Digital root of 53106 =
  10. 10.Digital root of 83 × 43 =
  11. 11.Digital root of 89 × 26 =
  12. 12.Digital root of 23 × 80 =
  13. 13.Digital root of 43 × 80 =
  14. 14.Digital root of 73 × 56 =
  15. 15.Digital root of 74 × 99 =
  16. 16.Digital root of 96644 =
  17. 17.Digital root of 34234 =
  18. 18.Digital root of 97 × 63 =
  19. 19.Digital root of 84918 =
  20. 20.Digital root of 78 × 58 =
  21. 21.Digital root of 78 × 66 =
  22. 22.Digital root of 71947 =
  23. 23.Digital root of 839 =
  24. 24.Digital root of 81172 =
  25. 25.Digital root of 23 × 78 =
  26. 26.Digital root of 62 × 15 =
  27. 27.Digital root of 99 × 70 =
  28. 28.Digital root of 31004 =
  29. 29.Digital root of 66174 =
  30. 30.Digital root of 63452 =
  31. 31.Digital root of 92825 =
  32. 32.Digital root of 53452 =
  33. 33.Digital root of 67403 =
  34. 34.Digital root of 39 × 48 =
  35. 35.Digital root of 34 × 67 =
  36. 36.Digital root of 36436 =
  37. 37.Digital root of 29161 =
  38. 38.Digital root of 22 × 46 =
  39. 39.Digital root of 27 × 87 =
  40. 40.Digital root of 79 × 86 =

Answer key

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

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