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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 480 · 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 44 × 64 =
  2. 2.Digital root of 68 × 48 =
  3. 3.Digital root of 35 × 59 =
  4. 4.Digital root of 64218 =
  5. 5.Digital root of 72 × 24 =
  6. 6.Digital root of 97 × 21 =
  7. 7.Digital root of 24 × 13 =
  8. 8.Digital root of 77 × 73 =
  9. 9.Digital root of 17 × 75 =
  10. 10.Digital root of 54325 =
  11. 11.Digital root of 5816 =
  12. 12.Digital root of 15972 =
  13. 13.Digital root of 38 × 41 =
  14. 14.Digital root of 19060 =
  15. 15.Digital root of 62859 =
  16. 16.Digital root of 1630 =
  17. 17.Digital root of 21 × 26 =
  18. 18.Digital root of 18 × 80 =
  19. 19.Digital root of 20572 =
  20. 20.Digital root of 25026 =
  21. 21.Digital root of 86162 =
  22. 22.Digital root of 72 × 53 =
  23. 23.Digital root of 17261 =
  24. 24.Digital root of 12 × 17 =
  25. 25.Digital root of 31 × 43 =
  26. 26.Digital root of 23250 =
  27. 27.Digital root of 84 × 73 =
  28. 28.Digital root of 12090 =
  29. 29.Digital root of 68085 =
  30. 30.Digital root of 73510 =
  31. 31.Digital root of 94968 =
  32. 32.Digital root of 71594 =
  33. 33.Digital root of 9031 =
  34. 34.Digital root of 17205 =
  35. 35.Digital root of 36 × 69 =
  36. 36.Digital root of 45 × 16 =
  37. 37.Digital root of 99843 =
  38. 38.Digital root of 74689 =
  39. 39.Digital root of 91 × 44 =
  40. 40.Digital root of 33 × 38 =

Answer key

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

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