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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 354 · 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 3489 =
  2. 2.Digital root of 41483 =
  3. 3.Digital root of 73053 =
  4. 4.Digital root of 24 × 61 =
  5. 5.Digital root of 19093 =
  6. 6.Digital root of 96 × 55 =
  7. 7.Digital root of 283 =
  8. 8.Digital root of 12117 =
  9. 9.Digital root of 62968 =
  10. 10.Digital root of 34049 =
  11. 11.Digital root of 90954 =
  12. 12.Digital root of 14 × 21 =
  13. 13.Digital root of 22 × 64 =
  14. 14.Digital root of 39726 =
  15. 15.Digital root of 75 × 84 =
  16. 16.Digital root of 30 × 84 =
  17. 17.Digital root of 59 × 38 =
  18. 18.Digital root of 6428 =
  19. 19.Digital root of 97 × 17 =
  20. 20.Digital root of 38087 =
  21. 21.Digital root of 32077 =
  22. 22.Digital root of 14778 =
  23. 23.Digital root of 25207 =
  24. 24.Digital root of 23 × 76 =
  25. 25.Digital root of 43633 =
  26. 26.Digital root of 49 × 94 =
  27. 27.Digital root of 81 × 44 =
  28. 28.Digital root of 69 × 13 =
  29. 29.Digital root of 29 × 94 =
  30. 30.Digital root of 36028 =
  31. 31.Digital root of 43794 =
  32. 32.Digital root of 1465 =
  33. 33.Digital root of 71 × 98 =
  34. 34.Digital root of 93389 =
  35. 35.Digital root of 66 × 54 =
  36. 36.Digital root of 95982 =
  37. 37.Digital root of 22 × 49 =
  38. 38.Digital root of 35 × 60 =
  39. 39.Digital root of 21 × 71 =
  40. 40.Digital root of 63 × 12 =

Answer key

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

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