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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 970 · 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 6796 =
  2. 2.Digital root of 12 × 37 =
  3. 3.Digital root of 24 × 95 =
  4. 4.Digital root of 12338 =
  5. 5.Digital root of 25413 =
  6. 6.Digital root of 17271 =
  7. 7.Digital root of 48971 =
  8. 8.Digital root of 16 × 71 =
  9. 9.Digital root of 56229 =
  10. 10.Digital root of 31 × 56 =
  11. 11.Digital root of 13 × 83 =
  12. 12.Digital root of 66 × 40 =
  13. 13.Digital root of 69 × 75 =
  14. 14.Digital root of 79 × 63 =
  15. 15.Digital root of 90 × 36 =
  16. 16.Digital root of 96350 =
  17. 17.Digital root of 57585 =
  18. 18.Digital root of 38 × 59 =
  19. 19.Digital root of 33656 =
  20. 20.Digital root of 26 × 33 =
  21. 21.Digital root of 61890 =
  22. 22.Digital root of 82743 =
  23. 23.Digital root of 83895 =
  24. 24.Digital root of 89 × 12 =
  25. 25.Digital root of 37 × 16 =
  26. 26.Digital root of 63 × 36 =
  27. 27.Digital root of 93 × 83 =
  28. 28.Digital root of 36 × 60 =
  29. 29.Digital root of 94 × 87 =
  30. 30.Digital root of 60 × 21 =
  31. 31.Digital root of 88 × 17 =
  32. 32.Digital root of 26 × 39 =
  33. 33.Digital root of 30 × 28 =
  34. 34.Digital root of 16 × 21 =
  35. 35.Digital root of 31 × 76 =
  36. 36.Digital root of 54683 =
  37. 37.Digital root of 67 × 22 =
  38. 38.Digital root of 32 × 34 =
  39. 39.Digital root of 40 × 90 =
  40. 40.Digital root of 16 × 88 =

Answer key

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

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