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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 379 · 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 81 × 81 =
  2. 2.Digital root of 96638 =
  3. 3.Digital root of 89782 =
  4. 4.Digital root of 670 =
  5. 5.Digital root of 8198 =
  6. 6.Digital root of 42522 =
  7. 7.Digital root of 66 × 54 =
  8. 8.Digital root of 33710 =
  9. 9.Digital root of 87659 =
  10. 10.Digital root of 54 × 19 =
  11. 11.Digital root of 15464 =
  12. 12.Digital root of 62 × 27 =
  13. 13.Digital root of 42 × 23 =
  14. 14.Digital root of 65773 =
  15. 15.Digital root of 17 × 92 =
  16. 16.Digital root of 18733 =
  17. 17.Digital root of 37232 =
  18. 18.Digital root of 86419 =
  19. 19.Digital root of 56144 =
  20. 20.Digital root of 85899 =
  21. 21.Digital root of 98 × 62 =
  22. 22.Digital root of 74 × 37 =
  23. 23.Digital root of 92 × 95 =
  24. 24.Digital root of 47 × 74 =
  25. 25.Digital root of 28363 =
  26. 26.Digital root of 27404 =
  27. 27.Digital root of 88 × 22 =
  28. 28.Digital root of 45548 =
  29. 29.Digital root of 30257 =
  30. 30.Digital root of 38 × 89 =
  31. 31.Digital root of 66 × 97 =
  32. 32.Digital root of 7099 =
  33. 33.Digital root of 90547 =
  34. 34.Digital root of 28 × 69 =
  35. 35.Digital root of 91 × 70 =
  36. 36.Digital root of 33 × 21 =
  37. 37.Digital root of 69 × 41 =
  38. 38.Digital root of 20 × 21 =
  39. 39.Digital root of 96017 =
  40. 40.Digital root of 40882 =

Answer key

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

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