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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 273 · 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 65677 =
  2. 2.Digital root of 86 × 14 =
  3. 3.Digital root of 35 × 96 =
  4. 4.Digital root of 17 × 18 =
  5. 5.Digital root of 49 × 35 =
  6. 6.Digital root of 42 × 36 =
  7. 7.Digital root of 11642 =
  8. 8.Digital root of 20 × 85 =
  9. 9.Digital root of 28 × 96 =
  10. 10.Digital root of 74314 =
  11. 11.Digital root of 59625 =
  12. 12.Digital root of 67 × 45 =
  13. 13.Digital root of 62 × 95 =
  14. 14.Digital root of 44134 =
  15. 15.Digital root of 99 × 18 =
  16. 16.Digital root of 71595 =
  17. 17.Digital root of 49491 =
  18. 18.Digital root of 85319 =
  19. 19.Digital root of 10045 =
  20. 20.Digital root of 14705 =
  21. 21.Digital root of 26303 =
  22. 22.Digital root of 97 × 58 =
  23. 23.Digital root of 58 × 27 =
  24. 24.Digital root of 5827 =
  25. 25.Digital root of 53 × 70 =
  26. 26.Digital root of 83973 =
  27. 27.Digital root of 36 × 49 =
  28. 28.Digital root of 95 × 76 =
  29. 29.Digital root of 51388 =
  30. 30.Digital root of 50 × 51 =
  31. 31.Digital root of 48080 =
  32. 32.Digital root of 97 × 30 =
  33. 33.Digital root of 96 × 40 =
  34. 34.Digital root of 89653 =
  35. 35.Digital root of 39 × 60 =
  36. 36.Digital root of 11641 =
  37. 37.Digital root of 63 × 50 =
  38. 38.Digital root of 52 × 44 =
  39. 39.Digital root of 33 × 29 =
  40. 40.Digital root of 89190 =

Answer key

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

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