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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 256 · 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 41 × 22 =
  2. 2.Digital root of 86033 =
  3. 3.Digital root of 76223 =
  4. 4.Digital root of 31906 =
  5. 5.Digital root of 22982 =
  6. 6.Digital root of 58870 =
  7. 7.Digital root of 57766 =
  8. 8.Digital root of 32046 =
  9. 9.Digital root of 69716 =
  10. 10.Digital root of 17 × 25 =
  11. 11.Digital root of 21 × 63 =
  12. 12.Digital root of 81693 =
  13. 13.Digital root of 96216 =
  14. 14.Digital root of 13601 =
  15. 15.Digital root of 46615 =
  16. 16.Digital root of 57 × 91 =
  17. 17.Digital root of 87 × 83 =
  18. 18.Digital root of 96 × 25 =
  19. 19.Digital root of 70 × 41 =
  20. 20.Digital root of 39 × 46 =
  21. 21.Digital root of 79071 =
  22. 22.Digital root of 26656 =
  23. 23.Digital root of 38762 =
  24. 24.Digital root of 44 × 68 =
  25. 25.Digital root of 99234 =
  26. 26.Digital root of 91999 =
  27. 27.Digital root of 42756 =
  28. 28.Digital root of 80542 =
  29. 29.Digital root of 47579 =
  30. 30.Digital root of 14 × 47 =
  31. 31.Digital root of 75336 =
  32. 32.Digital root of 68142 =
  33. 33.Digital root of 32 × 26 =
  34. 34.Digital root of 56238 =
  35. 35.Digital root of 18 × 12 =
  36. 36.Digital root of 79831 =
  37. 37.Digital root of 85222 =
  38. 38.Digital root of 22 × 89 =
  39. 39.Digital root of 22 × 32 =
  40. 40.Digital root of 69364 =

Answer key

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

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