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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 754 · 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 13634 =
  2. 2.Digital root of 71 × 98 =
  3. 3.Digital root of 14 × 68 =
  4. 4.Digital root of 24 × 19 =
  5. 5.Digital root of 60718 =
  6. 6.Digital root of 16933 =
  7. 7.Digital root of 98928 =
  8. 8.Digital root of 74326 =
  9. 9.Digital root of 53117 =
  10. 10.Digital root of 89 × 21 =
  11. 11.Digital root of 60 × 89 =
  12. 12.Digital root of 57 × 22 =
  13. 13.Digital root of 19 × 97 =
  14. 14.Digital root of 30 × 25 =
  15. 15.Digital root of 67200 =
  16. 16.Digital root of 89651 =
  17. 17.Digital root of 66 × 17 =
  18. 18.Digital root of 12520 =
  19. 19.Digital root of 73459 =
  20. 20.Digital root of 66 × 19 =
  21. 21.Digital root of 92873 =
  22. 22.Digital root of 11582 =
  23. 23.Digital root of 74 × 82 =
  24. 24.Digital root of 86644 =
  25. 25.Digital root of 8881 =
  26. 26.Digital root of 81560 =
  27. 27.Digital root of 4331 =
  28. 28.Digital root of 40 × 25 =
  29. 29.Digital root of 89320 =
  30. 30.Digital root of 96060 =
  31. 31.Digital root of 32834 =
  32. 32.Digital root of 88 × 58 =
  33. 33.Digital root of 94 × 68 =
  34. 34.Digital root of 95189 =
  35. 35.Digital root of 51196 =
  36. 36.Digital root of 79456 =
  37. 37.Digital root of 16 × 49 =
  38. 38.Digital root of 82 × 21 =
  39. 39.Digital root of 54530 =
  40. 40.Digital root of 26620 =

Answer key

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

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