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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 115 · 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 52843 =
  2. 2.Digital root of 70270 =
  3. 3.Digital root of 63 × 24 =
  4. 4.Digital root of 52 × 64 =
  5. 5.Digital root of 32 × 77 =
  6. 6.Digital root of 95076 =
  7. 7.Digital root of 13 × 49 =
  8. 8.Digital root of 59 × 97 =
  9. 9.Digital root of 4973 =
  10. 10.Digital root of 98 × 94 =
  11. 11.Digital root of 31581 =
  12. 12.Digital root of 57596 =
  13. 13.Digital root of 25 × 52 =
  14. 14.Digital root of 77 × 29 =
  15. 15.Digital root of 38426 =
  16. 16.Digital root of 2646 =
  17. 17.Digital root of 98 × 30 =
  18. 18.Digital root of 71973 =
  19. 19.Digital root of 17 × 80 =
  20. 20.Digital root of 88 × 62 =
  21. 21.Digital root of 78 × 40 =
  22. 22.Digital root of 89 × 94 =
  23. 23.Digital root of 12 × 23 =
  24. 24.Digital root of 4333 =
  25. 25.Digital root of 44598 =
  26. 26.Digital root of 21 × 64 =
  27. 27.Digital root of 25215 =
  28. 28.Digital root of 5487 =
  29. 29.Digital root of 48 × 18 =
  30. 30.Digital root of 62410 =
  31. 31.Digital root of 83864 =
  32. 32.Digital root of 46964 =
  33. 33.Digital root of 45 × 12 =
  34. 34.Digital root of 48523 =
  35. 35.Digital root of 5361 =
  36. 36.Digital root of 72 × 32 =
  37. 37.Digital root of 7598 =
  38. 38.Digital root of 68 × 54 =
  39. 39.Digital root of 44798 =
  40. 40.Digital root of 36076 =

Answer key

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

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