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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 800 · 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 52894 =
  2. 2.Digital root of 28 × 51 =
  3. 3.Digital root of 46 × 77 =
  4. 4.Digital root of 69 × 60 =
  5. 5.Digital root of 83750 =
  6. 6.Digital root of 14501 =
  7. 7.Digital root of 30 × 54 =
  8. 8.Digital root of 58 × 38 =
  9. 9.Digital root of 96363 =
  10. 10.Digital root of 42 × 40 =
  11. 11.Digital root of 18913 =
  12. 12.Digital root of 38427 =
  13. 13.Digital root of 75 × 86 =
  14. 14.Digital root of 16034 =
  15. 15.Digital root of 91177 =
  16. 16.Digital root of 46570 =
  17. 17.Digital root of 59561 =
  18. 18.Digital root of 54872 =
  19. 19.Digital root of 62 × 35 =
  20. 20.Digital root of 24 × 82 =
  21. 21.Digital root of 42832 =
  22. 22.Digital root of 48 × 52 =
  23. 23.Digital root of 69 × 69 =
  24. 24.Digital root of 28731 =
  25. 25.Digital root of 39 × 74 =
  26. 26.Digital root of 13 × 89 =
  27. 27.Digital root of 95473 =
  28. 28.Digital root of 28159 =
  29. 29.Digital root of 85 × 86 =
  30. 30.Digital root of 50 × 51 =
  31. 31.Digital root of 72601 =
  32. 32.Digital root of 60 × 17 =
  33. 33.Digital root of 37033 =
  34. 34.Digital root of 20 × 40 =
  35. 35.Digital root of 18609 =
  36. 36.Digital root of 55 × 56 =
  37. 37.Digital root of 83 × 14 =
  38. 38.Digital root of 54815 =
  39. 39.Digital root of 97754 =
  40. 40.Digital root of 54 × 62 =

Answer key

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

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