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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 610 · 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 60520 =
  2. 2.Digital root of 3830 =
  3. 3.Digital root of 93440 =
  4. 4.Digital root of 30 × 54 =
  5. 5.Digital root of 98 × 78 =
  6. 6.Digital root of 70532 =
  7. 7.Digital root of 84 × 89 =
  8. 8.Digital root of 33372 =
  9. 9.Digital root of 95854 =
  10. 10.Digital root of 62542 =
  11. 11.Digital root of 20 × 32 =
  12. 12.Digital root of 94984 =
  13. 13.Digital root of 14 × 68 =
  14. 14.Digital root of 6001 =
  15. 15.Digital root of 60 × 56 =
  16. 16.Digital root of 93 × 89 =
  17. 17.Digital root of 96612 =
  18. 18.Digital root of 20 × 82 =
  19. 19.Digital root of 26583 =
  20. 20.Digital root of 10868 =
  21. 21.Digital root of 72 × 25 =
  22. 22.Digital root of 57047 =
  23. 23.Digital root of 33 × 44 =
  24. 24.Digital root of 87 × 20 =
  25. 25.Digital root of 39748 =
  26. 26.Digital root of 93 × 37 =
  27. 27.Digital root of 65478 =
  28. 28.Digital root of 15 × 15 =
  29. 29.Digital root of 77571 =
  30. 30.Digital root of 96532 =
  31. 31.Digital root of 68 × 99 =
  32. 32.Digital root of 53327 =
  33. 33.Digital root of 99371 =
  34. 34.Digital root of 13 × 90 =
  35. 35.Digital root of 36 × 36 =
  36. 36.Digital root of 84705 =
  37. 37.Digital root of 34605 =
  38. 38.Digital root of 78645 =
  39. 39.Digital root of 44 × 74 =
  40. 40.Digital root of 21 × 32 =

Answer key

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

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