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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 236 · 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 2332 =
  2. 2.Digital root of 34 × 60 =
  3. 3.Digital root of 25 × 68 =
  4. 4.Digital root of 20477 =
  5. 5.Digital root of 14821 =
  6. 6.Digital root of 23 × 47 =
  7. 7.Digital root of 67 × 26 =
  8. 8.Digital root of 55 × 89 =
  9. 9.Digital root of 68 × 69 =
  10. 10.Digital root of 43 × 93 =
  11. 11.Digital root of 583 =
  12. 12.Digital root of 98927 =
  13. 13.Digital root of 72691 =
  14. 14.Digital root of 41378 =
  15. 15.Digital root of 93 × 40 =
  16. 16.Digital root of 39 × 54 =
  17. 17.Digital root of 77 × 36 =
  18. 18.Digital root of 31 × 43 =
  19. 19.Digital root of 18781 =
  20. 20.Digital root of 79 × 82 =
  21. 21.Digital root of 12367 =
  22. 22.Digital root of 67 × 39 =
  23. 23.Digital root of 17 × 71 =
  24. 24.Digital root of 48 × 59 =
  25. 25.Digital root of 8659 =
  26. 26.Digital root of 13 × 52 =
  27. 27.Digital root of 73 × 59 =
  28. 28.Digital root of 28 × 29 =
  29. 29.Digital root of 93 × 30 =
  30. 30.Digital root of 92941 =
  31. 31.Digital root of 72652 =
  32. 32.Digital root of 23 × 31 =
  33. 33.Digital root of 12 × 13 =
  34. 34.Digital root of 70345 =
  35. 35.Digital root of 31773 =
  36. 36.Digital root of 8952 =
  37. 37.Digital root of 57446 =
  38. 38.Digital root of 88 × 90 =
  39. 39.Digital root of 33323 =
  40. 40.Digital root of 54608 =

Answer key

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

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