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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 839 · 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 50219 =
  2. 2.Digital root of 82802 =
  3. 3.Digital root of 40 × 99 =
  4. 4.Digital root of 13 × 44 =
  5. 5.Digital root of 89 × 55 =
  6. 6.Digital root of 64072 =
  7. 7.Digital root of 19 × 69 =
  8. 8.Digital root of 92 × 15 =
  9. 9.Digital root of 47605 =
  10. 10.Digital root of 21 × 70 =
  11. 11.Digital root of 75329 =
  12. 12.Digital root of 32 × 32 =
  13. 13.Digital root of 76951 =
  14. 14.Digital root of 4460 =
  15. 15.Digital root of 25 × 34 =
  16. 16.Digital root of 62188 =
  17. 17.Digital root of 91 × 56 =
  18. 18.Digital root of 77200 =
  19. 19.Digital root of 94035 =
  20. 20.Digital root of 85 × 60 =
  21. 21.Digital root of 50 × 19 =
  22. 22.Digital root of 23 × 77 =
  23. 23.Digital root of 14 × 68 =
  24. 24.Digital root of 50 × 18 =
  25. 25.Digital root of 31595 =
  26. 26.Digital root of 15 × 82 =
  27. 27.Digital root of 34 × 74 =
  28. 28.Digital root of 41 × 51 =
  29. 29.Digital root of 30 × 42 =
  30. 30.Digital root of 12709 =
  31. 31.Digital root of 12 × 34 =
  32. 32.Digital root of 93 × 86 =
  33. 33.Digital root of 26 × 34 =
  34. 34.Digital root of 50275 =
  35. 35.Digital root of 7596 =
  36. 36.Digital root of 25933 =
  37. 37.Digital root of 76925 =
  38. 38.Digital root of 42 × 35 =
  39. 39.Digital root of 62 × 99 =
  40. 40.Digital root of 15 × 51 =

Answer key

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

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