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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 230 · 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 63 × 38 =
  2. 2.Digital root of 49542 =
  3. 3.Digital root of 79819 =
  4. 4.Digital root of 50939 =
  5. 5.Digital root of 29 × 23 =
  6. 6.Digital root of 24150 =
  7. 7.Digital root of 83 × 90 =
  8. 8.Digital root of 19 × 27 =
  9. 9.Digital root of 32 × 53 =
  10. 10.Digital root of 18 × 58 =
  11. 11.Digital root of 93 × 59 =
  12. 12.Digital root of 97013 =
  13. 13.Digital root of 26358 =
  14. 14.Digital root of 10167 =
  15. 15.Digital root of 69 × 47 =
  16. 16.Digital root of 25 × 48 =
  17. 17.Digital root of 22 × 35 =
  18. 18.Digital root of 20 × 17 =
  19. 19.Digital root of 4705 =
  20. 20.Digital root of 15 × 27 =
  21. 21.Digital root of 36 × 39 =
  22. 22.Digital root of 38 × 76 =
  23. 23.Digital root of 93 × 63 =
  24. 24.Digital root of 37 × 97 =
  25. 25.Digital root of 35 × 79 =
  26. 26.Digital root of 91474 =
  27. 27.Digital root of 19989 =
  28. 28.Digital root of 13 × 79 =
  29. 29.Digital root of 22466 =
  30. 30.Digital root of 78 × 33 =
  31. 31.Digital root of 14358 =
  32. 32.Digital root of 56 × 52 =
  33. 33.Digital root of 27 × 69 =
  34. 34.Digital root of 14 × 25 =
  35. 35.Digital root of 69 × 84 =
  36. 36.Digital root of 23499 =
  37. 37.Digital root of 38 × 99 =
  38. 38.Digital root of 42 × 57 =
  39. 39.Digital root of 63 × 35 =
  40. 40.Digital root of 44 × 88 =

Answer key

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

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