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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 962 · 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 63672 =
  2. 2.Digital root of 94 × 90 =
  3. 3.Digital root of 30857 =
  4. 4.Digital root of 41578 =
  5. 5.Digital root of 91582 =
  6. 6.Digital root of 30313 =
  7. 7.Digital root of 58 × 88 =
  8. 8.Digital root of 94 × 56 =
  9. 9.Digital root of 45 × 12 =
  10. 10.Digital root of 71065 =
  11. 11.Digital root of 44799 =
  12. 12.Digital root of 77967 =
  13. 13.Digital root of 57646 =
  14. 14.Digital root of 17811 =
  15. 15.Digital root of 86 × 35 =
  16. 16.Digital root of 13 × 89 =
  17. 17.Digital root of 15675 =
  18. 18.Digital root of 38434 =
  19. 19.Digital root of 56719 =
  20. 20.Digital root of 32197 =
  21. 21.Digital root of 98 × 41 =
  22. 22.Digital root of 10343 =
  23. 23.Digital root of 15260 =
  24. 24.Digital root of 70 × 30 =
  25. 25.Digital root of 42403 =
  26. 26.Digital root of 82330 =
  27. 27.Digital root of 29 × 44 =
  28. 28.Digital root of 25 × 86 =
  29. 29.Digital root of 36654 =
  30. 30.Digital root of 38585 =
  31. 31.Digital root of 9293 =
  32. 32.Digital root of 18124 =
  33. 33.Digital root of 59 × 61 =
  34. 34.Digital root of 27 × 99 =
  35. 35.Digital root of 8649 =
  36. 36.Digital root of 43 × 91 =
  37. 37.Digital root of 87371 =
  38. 38.Digital root of 89058 =
  39. 39.Digital root of 86803 =
  40. 40.Digital root of 55 × 48 =

Answer key

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

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