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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 796 · 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 84 × 52 =
  2. 2.Digital root of 61741 =
  3. 3.Digital root of 13681 =
  4. 4.Digital root of 82019 =
  5. 5.Digital root of 35 × 95 =
  6. 6.Digital root of 2313 =
  7. 7.Digital root of 25 × 75 =
  8. 8.Digital root of 33651 =
  9. 9.Digital root of 71 × 52 =
  10. 10.Digital root of 2368 =
  11. 11.Digital root of 52102 =
  12. 12.Digital root of 88 × 72 =
  13. 13.Digital root of 48712 =
  14. 14.Digital root of 25 × 93 =
  15. 15.Digital root of 69 × 15 =
  16. 16.Digital root of 32 × 19 =
  17. 17.Digital root of 8915 =
  18. 18.Digital root of 93 × 74 =
  19. 19.Digital root of 97545 =
  20. 20.Digital root of 38055 =
  21. 21.Digital root of 50934 =
  22. 22.Digital root of 23 × 84 =
  23. 23.Digital root of 17 × 89 =
  24. 24.Digital root of 22200 =
  25. 25.Digital root of 44704 =
  26. 26.Digital root of 73 × 46 =
  27. 27.Digital root of 42 × 35 =
  28. 28.Digital root of 17 × 25 =
  29. 29.Digital root of 21 × 76 =
  30. 30.Digital root of 99516 =
  31. 31.Digital root of 65960 =
  32. 32.Digital root of 53454 =
  33. 33.Digital root of 72399 =
  34. 34.Digital root of 89 × 30 =
  35. 35.Digital root of 93472 =
  36. 36.Digital root of 87 × 42 =
  37. 37.Digital root of 4781 =
  38. 38.Digital root of 67169 =
  39. 39.Digital root of 28127 =
  40. 40.Digital root of 93914 =

Answer key

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

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