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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 752 · 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 79189 =
  2. 2.Digital root of 6982 =
  3. 3.Digital root of 46482 =
  4. 4.Digital root of 63 × 98 =
  5. 5.Digital root of 26 × 92 =
  6. 6.Digital root of 16 × 56 =
  7. 7.Digital root of 71 × 42 =
  8. 8.Digital root of 54960 =
  9. 9.Digital root of 78697 =
  10. 10.Digital root of 64384 =
  11. 11.Digital root of 27 × 25 =
  12. 12.Digital root of 2548 =
  13. 13.Digital root of 67 × 20 =
  14. 14.Digital root of 1561 =
  15. 15.Digital root of 18410 =
  16. 16.Digital root of 96221 =
  17. 17.Digital root of 20984 =
  18. 18.Digital root of 82535 =
  19. 19.Digital root of 97388 =
  20. 20.Digital root of 51 × 40 =
  21. 21.Digital root of 62402 =
  22. 22.Digital root of 19 × 44 =
  23. 23.Digital root of 12 × 94 =
  24. 24.Digital root of 15 × 91 =
  25. 25.Digital root of 21416 =
  26. 26.Digital root of 24597 =
  27. 27.Digital root of 45332 =
  28. 28.Digital root of 82 × 69 =
  29. 29.Digital root of 42 × 66 =
  30. 30.Digital root of 72124 =
  31. 31.Digital root of 27035 =
  32. 32.Digital root of 79 × 57 =
  33. 33.Digital root of 35 × 18 =
  34. 34.Digital root of 96888 =
  35. 35.Digital root of 5762 =
  36. 36.Digital root of 84 × 82 =
  37. 37.Digital root of 49859 =
  38. 38.Digital root of 35 × 47 =
  39. 39.Digital root of 4859 =
  40. 40.Digital root of 20 × 93 =

Answer key

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

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