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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 15 · 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 72658 =
  2. 2.Digital root of 43 × 57 =
  3. 3.Digital root of 57 × 97 =
  4. 4.Digital root of 95378 =
  5. 5.Digital root of 52059 =
  6. 6.Digital root of 21845 =
  7. 7.Digital root of 98 × 32 =
  8. 8.Digital root of 36 × 21 =
  9. 9.Digital root of 23105 =
  10. 10.Digital root of 65436 =
  11. 11.Digital root of 19747 =
  12. 12.Digital root of 59713 =
  13. 13.Digital root of 50 × 35 =
  14. 14.Digital root of 89 × 49 =
  15. 15.Digital root of 25 × 94 =
  16. 16.Digital root of 57 × 24 =
  17. 17.Digital root of 84 × 88 =
  18. 18.Digital root of 64824 =
  19. 19.Digital root of 89 × 23 =
  20. 20.Digital root of 12966 =
  21. 21.Digital root of 19177 =
  22. 22.Digital root of 61 × 18 =
  23. 23.Digital root of 26 × 68 =
  24. 24.Digital root of 58 × 93 =
  25. 25.Digital root of 34 × 25 =
  26. 26.Digital root of 26 × 84 =
  27. 27.Digital root of 44 × 28 =
  28. 28.Digital root of 37341 =
  29. 29.Digital root of 84 × 12 =
  30. 30.Digital root of 18 × 24 =
  31. 31.Digital root of 97 × 47 =
  32. 32.Digital root of 95322 =
  33. 33.Digital root of 91017 =
  34. 34.Digital root of 61 × 40 =
  35. 35.Digital root of 99 × 76 =
  36. 36.Digital root of 71844 =
  37. 37.Digital root of 55 × 42 =
  38. 38.Digital root of 44173 =
  39. 39.Digital root of 27035 =
  40. 40.Digital root of 13530 =

Answer key

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

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