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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 725 · 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 97192 =
  2. 2.Digital root of 24 × 98 =
  3. 3.Digital root of 12 × 17 =
  4. 4.Digital root of 86 × 50 =
  5. 5.Digital root of 14 × 14 =
  6. 6.Digital root of 78931 =
  7. 7.Digital root of 64653 =
  8. 8.Digital root of 35 × 41 =
  9. 9.Digital root of 64 × 88 =
  10. 10.Digital root of 57138 =
  11. 11.Digital root of 80177 =
  12. 12.Digital root of 51928 =
  13. 13.Digital root of 47107 =
  14. 14.Digital root of 96 × 98 =
  15. 15.Digital root of 56 × 33 =
  16. 16.Digital root of 76 × 27 =
  17. 17.Digital root of 79742 =
  18. 18.Digital root of 72 × 72 =
  19. 19.Digital root of 3967 =
  20. 20.Digital root of 93540 =
  21. 21.Digital root of 24 × 56 =
  22. 22.Digital root of 25 × 94 =
  23. 23.Digital root of 45626 =
  24. 24.Digital root of 84 × 72 =
  25. 25.Digital root of 10036 =
  26. 26.Digital root of 18 × 45 =
  27. 27.Digital root of 23315 =
  28. 28.Digital root of 64 × 94 =
  29. 29.Digital root of 81 × 95 =
  30. 30.Digital root of 73 × 46 =
  31. 31.Digital root of 99 × 60 =
  32. 32.Digital root of 67871 =
  33. 33.Digital root of 74 × 91 =
  34. 34.Digital root of 95 × 57 =
  35. 35.Digital root of 80445 =
  36. 36.Digital root of 70 × 56 =
  37. 37.Digital root of 13322 =
  38. 38.Digital root of 68347 =
  39. 39.Digital root of 47378 =
  40. 40.Digital root of 5158 =

Answer key

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

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