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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 340 · 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 31 × 64 =
  2. 2.Digital root of 12022 =
  3. 3.Digital root of 89 × 49 =
  4. 4.Digital root of 80 × 66 =
  5. 5.Digital root of 13 × 12 =
  6. 6.Digital root of 92000 =
  7. 7.Digital root of 20750 =
  8. 8.Digital root of 47 × 40 =
  9. 9.Digital root of 46 × 32 =
  10. 10.Digital root of 32 × 81 =
  11. 11.Digital root of 88721 =
  12. 12.Digital root of 15 × 30 =
  13. 13.Digital root of 25 × 23 =
  14. 14.Digital root of 40438 =
  15. 15.Digital root of 63 × 63 =
  16. 16.Digital root of 66 × 91 =
  17. 17.Digital root of 44212 =
  18. 18.Digital root of 31259 =
  19. 19.Digital root of 64 × 21 =
  20. 20.Digital root of 63741 =
  21. 21.Digital root of 20 × 59 =
  22. 22.Digital root of 87 × 97 =
  23. 23.Digital root of 37735 =
  24. 24.Digital root of 77 × 32 =
  25. 25.Digital root of 29 × 84 =
  26. 26.Digital root of 59969 =
  27. 27.Digital root of 22 × 22 =
  28. 28.Digital root of 4626 =
  29. 29.Digital root of 73 × 55 =
  30. 30.Digital root of 23 × 21 =
  31. 31.Digital root of 2093 =
  32. 32.Digital root of 16 × 16 =
  33. 33.Digital root of 48531 =
  34. 34.Digital root of 33 × 31 =
  35. 35.Digital root of 69178 =
  36. 36.Digital root of 17079 =
  37. 37.Digital root of 89163 =
  38. 38.Digital root of 62938 =
  39. 39.Digital root of 39 × 64 =
  40. 40.Digital root of 86294 =

Answer key

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

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