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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 571 · 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 17724 =
  2. 2.Digital root of 74 × 43 =
  3. 3.Digital root of 38 × 52 =
  4. 4.Digital root of 11790 =
  5. 5.Digital root of 38085 =
  6. 6.Digital root of 33188 =
  7. 7.Digital root of 34 × 30 =
  8. 8.Digital root of 23 × 84 =
  9. 9.Digital root of 23748 =
  10. 10.Digital root of 32 × 72 =
  11. 11.Digital root of 24 × 44 =
  12. 12.Digital root of 28085 =
  13. 13.Digital root of 59123 =
  14. 14.Digital root of 25 × 82 =
  15. 15.Digital root of 45 × 95 =
  16. 16.Digital root of 52728 =
  17. 17.Digital root of 27 × 88 =
  18. 18.Digital root of 98493 =
  19. 19.Digital root of 64673 =
  20. 20.Digital root of 26664 =
  21. 21.Digital root of 96893 =
  22. 22.Digital root of 57 × 35 =
  23. 23.Digital root of 27183 =
  24. 24.Digital root of 77969 =
  25. 25.Digital root of 55 × 49 =
  26. 26.Digital root of 14 × 25 =
  27. 27.Digital root of 11481 =
  28. 28.Digital root of 88184 =
  29. 29.Digital root of 12 × 25 =
  30. 30.Digital root of 79582 =
  31. 31.Digital root of 99229 =
  32. 32.Digital root of 77536 =
  33. 33.Digital root of 18 × 17 =
  34. 34.Digital root of 68 × 38 =
  35. 35.Digital root of 82388 =
  36. 36.Digital root of 85 × 73 =
  37. 37.Digital root of 95557 =
  38. 38.Digital root of 47321 =
  39. 39.Digital root of 26 × 82 =
  40. 40.Digital root of 92523 =

Answer key

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

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