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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 436 · 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 22115 =
  2. 2.Digital root of 63 × 60 =
  3. 3.Digital root of 98672 =
  4. 4.Digital root of 73 × 23 =
  5. 5.Digital root of 47113 =
  6. 6.Digital root of 61924 =
  7. 7.Digital root of 28980 =
  8. 8.Digital root of 22301 =
  9. 9.Digital root of 12489 =
  10. 10.Digital root of 50 × 93 =
  11. 11.Digital root of 82858 =
  12. 12.Digital root of 35373 =
  13. 13.Digital root of 89465 =
  14. 14.Digital root of 47 × 80 =
  15. 15.Digital root of 26014 =
  16. 16.Digital root of 83086 =
  17. 17.Digital root of 67905 =
  18. 18.Digital root of 42 × 14 =
  19. 19.Digital root of 83648 =
  20. 20.Digital root of 83 × 17 =
  21. 21.Digital root of 69 × 50 =
  22. 22.Digital root of 95045 =
  23. 23.Digital root of 84 × 35 =
  24. 24.Digital root of 53 × 79 =
  25. 25.Digital root of 70 × 20 =
  26. 26.Digital root of 81 × 23 =
  27. 27.Digital root of 85858 =
  28. 28.Digital root of 43975 =
  29. 29.Digital root of 93938 =
  30. 30.Digital root of 85 × 14 =
  31. 31.Digital root of 7143 =
  32. 32.Digital root of 77996 =
  33. 33.Digital root of 31400 =
  34. 34.Digital root of 26088 =
  35. 35.Digital root of 508 =
  36. 36.Digital root of 87 × 58 =
  37. 37.Digital root of 35751 =
  38. 38.Digital root of 19699 =
  39. 39.Digital root of 1633 =
  40. 40.Digital root of 64593 =

Answer key

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

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