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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 579 · 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 47805 =
  2. 2.Digital root of 34 × 22 =
  3. 3.Digital root of 33 × 75 =
  4. 4.Digital root of 48740 =
  5. 5.Digital root of 50323 =
  6. 6.Digital root of 88668 =
  7. 7.Digital root of 12 × 20 =
  8. 8.Digital root of 12105 =
  9. 9.Digital root of 8318 =
  10. 10.Digital root of 98764 =
  11. 11.Digital root of 15 × 62 =
  12. 12.Digital root of 78 × 57 =
  13. 13.Digital root of 40499 =
  14. 14.Digital root of 93803 =
  15. 15.Digital root of 19408 =
  16. 16.Digital root of 90 × 32 =
  17. 17.Digital root of 665 =
  18. 18.Digital root of 11364 =
  19. 19.Digital root of 64202 =
  20. 20.Digital root of 90734 =
  21. 21.Digital root of 13 × 60 =
  22. 22.Digital root of 92983 =
  23. 23.Digital root of 67 × 48 =
  24. 24.Digital root of 11454 =
  25. 25.Digital root of 86 × 44 =
  26. 26.Digital root of 18589 =
  27. 27.Digital root of 84627 =
  28. 28.Digital root of 91 × 87 =
  29. 29.Digital root of 68579 =
  30. 30.Digital root of 78 × 21 =
  31. 31.Digital root of 17033 =
  32. 32.Digital root of 70080 =
  33. 33.Digital root of 51 × 32 =
  34. 34.Digital root of 14 × 95 =
  35. 35.Digital root of 57 × 79 =
  36. 36.Digital root of 12168 =
  37. 37.Digital root of 85829 =
  38. 38.Digital root of 69801 =
  39. 39.Digital root of 22 × 17 =
  40. 40.Digital root of 11075 =

Answer key

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

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