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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 352 · 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 39116 =
  2. 2.Digital root of 18 × 49 =
  3. 3.Digital root of 16426 =
  4. 4.Digital root of 95528 =
  5. 5.Digital root of 61962 =
  6. 6.Digital root of 42270 =
  7. 7.Digital root of 74 × 32 =
  8. 8.Digital root of 92321 =
  9. 9.Digital root of 75 × 99 =
  10. 10.Digital root of 64 × 65 =
  11. 11.Digital root of 37 × 30 =
  12. 12.Digital root of 69 × 14 =
  13. 13.Digital root of 15 × 69 =
  14. 14.Digital root of 22 × 84 =
  15. 15.Digital root of 24 × 13 =
  16. 16.Digital root of 72 × 65 =
  17. 17.Digital root of 47 × 39 =
  18. 18.Digital root of 19153 =
  19. 19.Digital root of 57943 =
  20. 20.Digital root of 6902 =
  21. 21.Digital root of 14356 =
  22. 22.Digital root of 4277 =
  23. 23.Digital root of 1760 =
  24. 24.Digital root of 18741 =
  25. 25.Digital root of 22873 =
  26. 26.Digital root of 27 × 65 =
  27. 27.Digital root of 13 × 92 =
  28. 28.Digital root of 88521 =
  29. 29.Digital root of 30 × 12 =
  30. 30.Digital root of 86145 =
  31. 31.Digital root of 13 × 28 =
  32. 32.Digital root of 96 × 50 =
  33. 33.Digital root of 44195 =
  34. 34.Digital root of 67088 =
  35. 35.Digital root of 3519 =
  36. 36.Digital root of 15 × 87 =
  37. 37.Digital root of 82 × 27 =
  38. 38.Digital root of 73 × 56 =
  39. 39.Digital root of 83 × 82 =
  40. 40.Digital root of 86 × 33 =

Answer key

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

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