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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 90 · 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 73773 =
  2. 2.Digital root of 5722 =
  3. 3.Digital root of 48 × 63 =
  4. 4.Digital root of 32167 =
  5. 5.Digital root of 73566 =
  6. 6.Digital root of 92125 =
  7. 7.Digital root of 57580 =
  8. 8.Digital root of 57 × 56 =
  9. 9.Digital root of 20809 =
  10. 10.Digital root of 16205 =
  11. 11.Digital root of 49 × 32 =
  12. 12.Digital root of 14132 =
  13. 13.Digital root of 10361 =
  14. 14.Digital root of 42494 =
  15. 15.Digital root of 6151 =
  16. 16.Digital root of 31 × 47 =
  17. 17.Digital root of 29 × 45 =
  18. 18.Digital root of 87 × 30 =
  19. 19.Digital root of 18 × 75 =
  20. 20.Digital root of 5166 =
  21. 21.Digital root of 96 × 93 =
  22. 22.Digital root of 85968 =
  23. 23.Digital root of 12 × 47 =
  24. 24.Digital root of 43560 =
  25. 25.Digital root of 81641 =
  26. 26.Digital root of 31 × 65 =
  27. 27.Digital root of 84770 =
  28. 28.Digital root of 24105 =
  29. 29.Digital root of 83620 =
  30. 30.Digital root of 45051 =
  31. 31.Digital root of 27 × 40 =
  32. 32.Digital root of 51 × 66 =
  33. 33.Digital root of 96879 =
  34. 34.Digital root of 27080 =
  35. 35.Digital root of 24 × 91 =
  36. 36.Digital root of 70373 =
  37. 37.Digital root of 68459 =
  38. 38.Digital root of 82648 =
  39. 39.Digital root of 92 × 29 =
  40. 40.Digital root of 36 × 90 =

Answer key

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

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