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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 94 · 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 2738 =
  2. 2.Digital root of 60 × 13 =
  3. 3.Digital root of 51736 =
  4. 4.Digital root of 17 × 34 =
  5. 5.Digital root of 29 × 21 =
  6. 6.Digital root of 75287 =
  7. 7.Digital root of 36 × 19 =
  8. 8.Digital root of 13616 =
  9. 9.Digital root of 2657 =
  10. 10.Digital root of 80 × 73 =
  11. 11.Digital root of 5170 =
  12. 12.Digital root of 61041 =
  13. 13.Digital root of 97 × 83 =
  14. 14.Digital root of 3949 =
  15. 15.Digital root of 67 × 14 =
  16. 16.Digital root of 28 × 15 =
  17. 17.Digital root of 83523 =
  18. 18.Digital root of 8729 =
  19. 19.Digital root of 72 × 71 =
  20. 20.Digital root of 62043 =
  21. 21.Digital root of 35 × 42 =
  22. 22.Digital root of 81519 =
  23. 23.Digital root of 83085 =
  24. 24.Digital root of 75199 =
  25. 25.Digital root of 67 × 30 =
  26. 26.Digital root of 62 × 35 =
  27. 27.Digital root of 43105 =
  28. 28.Digital root of 49928 =
  29. 29.Digital root of 96 × 59 =
  30. 30.Digital root of 29429 =
  31. 31.Digital root of 82 × 41 =
  32. 32.Digital root of 70 × 68 =
  33. 33.Digital root of 75 × 35 =
  34. 34.Digital root of 2356 =
  35. 35.Digital root of 68 × 54 =
  36. 36.Digital root of 27 × 43 =
  37. 37.Digital root of 28 × 97 =
  38. 38.Digital root of 12188 =
  39. 39.Digital root of 4992 =
  40. 40.Digital root of 21 × 88 =

Answer key

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

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