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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 319 · 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 53257 =
  2. 2.Digital root of 83492 =
  3. 3.Digital root of 19269 =
  4. 4.Digital root of 46322 =
  5. 5.Digital root of 76284 =
  6. 6.Digital root of 81264 =
  7. 7.Digital root of 1740 =
  8. 8.Digital root of 77 × 64 =
  9. 9.Digital root of 19010 =
  10. 10.Digital root of 86 × 69 =
  11. 11.Digital root of 38742 =
  12. 12.Digital root of 37139 =
  13. 13.Digital root of 40645 =
  14. 14.Digital root of 58 × 24 =
  15. 15.Digital root of 70 × 12 =
  16. 16.Digital root of 91139 =
  17. 17.Digital root of 66352 =
  18. 18.Digital root of 27 × 14 =
  19. 19.Digital root of 20 × 12 =
  20. 20.Digital root of 25 × 69 =
  21. 21.Digital root of 24 × 28 =
  22. 22.Digital root of 77 × 62 =
  23. 23.Digital root of 35 × 49 =
  24. 24.Digital root of 33 × 95 =
  25. 25.Digital root of 1989 =
  26. 26.Digital root of 46 × 95 =
  27. 27.Digital root of 24178 =
  28. 28.Digital root of 37 × 17 =
  29. 29.Digital root of 46 × 95 =
  30. 30.Digital root of 51 × 23 =
  31. 31.Digital root of 74 × 74 =
  32. 32.Digital root of 73 × 33 =
  33. 33.Digital root of 27 × 34 =
  34. 34.Digital root of 68 × 74 =
  35. 35.Digital root of 4686 =
  36. 36.Digital root of 73 × 17 =
  37. 37.Digital root of 55044 =
  38. 38.Digital root of 21 × 48 =
  39. 39.Digital root of 49 × 46 =
  40. 40.Digital root of 44925 =

Answer key

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

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