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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 208 · 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 63 × 37 =
  2. 2.Digital root of 10940 =
  3. 3.Digital root of 69 × 13 =
  4. 4.Digital root of 53999 =
  5. 5.Digital root of 40 × 36 =
  6. 6.Digital root of 729 =
  7. 7.Digital root of 53 × 75 =
  8. 8.Digital root of 69214 =
  9. 9.Digital root of 61312 =
  10. 10.Digital root of 30 × 97 =
  11. 11.Digital root of 93 × 31 =
  12. 12.Digital root of 68735 =
  13. 13.Digital root of 42847 =
  14. 14.Digital root of 28505 =
  15. 15.Digital root of 38 × 23 =
  16. 16.Digital root of 35850 =
  17. 17.Digital root of 7841 =
  18. 18.Digital root of 42 × 32 =
  19. 19.Digital root of 93 × 48 =
  20. 20.Digital root of 47765 =
  21. 21.Digital root of 62 × 93 =
  22. 22.Digital root of 79 × 48 =
  23. 23.Digital root of 24491 =
  24. 24.Digital root of 51328 =
  25. 25.Digital root of 9484 =
  26. 26.Digital root of 39504 =
  27. 27.Digital root of 95 × 89 =
  28. 28.Digital root of 49 × 33 =
  29. 29.Digital root of 62532 =
  30. 30.Digital root of 17 × 15 =
  31. 31.Digital root of 64003 =
  32. 32.Digital root of 65777 =
  33. 33.Digital root of 11014 =
  34. 34.Digital root of 71 × 24 =
  35. 35.Digital root of 7165 =
  36. 36.Digital root of 12802 =
  37. 37.Digital root of 72 × 93 =
  38. 38.Digital root of 52 × 72 =
  39. 39.Digital root of 6983 =
  40. 40.Digital root of 74019 =

Answer key

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

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