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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 257 · 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 48689 =
  2. 2.Digital root of 6040 =
  3. 3.Digital root of 3223 =
  4. 4.Digital root of 12290 =
  5. 5.Digital root of 83190 =
  6. 6.Digital root of 91670 =
  7. 7.Digital root of 33685 =
  8. 8.Digital root of 13946 =
  9. 9.Digital root of 74920 =
  10. 10.Digital root of 51774 =
  11. 11.Digital root of 61443 =
  12. 12.Digital root of 22 × 19 =
  13. 13.Digital root of 55 × 15 =
  14. 14.Digital root of 37632 =
  15. 15.Digital root of 97902 =
  16. 16.Digital root of 67512 =
  17. 17.Digital root of 81423 =
  18. 18.Digital root of 88 × 69 =
  19. 19.Digital root of 30 × 62 =
  20. 20.Digital root of 41 × 98 =
  21. 21.Digital root of 79701 =
  22. 22.Digital root of 32 × 92 =
  23. 23.Digital root of 15 × 24 =
  24. 24.Digital root of 48906 =
  25. 25.Digital root of 14 × 69 =
  26. 26.Digital root of 91 × 53 =
  27. 27.Digital root of 88661 =
  28. 28.Digital root of 59 × 36 =
  29. 29.Digital root of 63 × 42 =
  30. 30.Digital root of 45 × 58 =
  31. 31.Digital root of 8777 =
  32. 32.Digital root of 62 × 17 =
  33. 33.Digital root of 91 × 16 =
  34. 34.Digital root of 67 × 42 =
  35. 35.Digital root of 81 × 76 =
  36. 36.Digital root of 21595 =
  37. 37.Digital root of 49522 =
  38. 38.Digital root of 87518 =
  39. 39.Digital root of 72245 =
  40. 40.Digital root of 29262 =

Answer key

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

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