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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 31 · 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 96970 =
  2. 2.Digital root of 95095 =
  3. 3.Digital root of 51567 =
  4. 4.Digital root of 45 × 30 =
  5. 5.Digital root of 65 × 69 =
  6. 6.Digital root of 47 × 89 =
  7. 7.Digital root of 58196 =
  8. 8.Digital root of 45 × 98 =
  9. 9.Digital root of 99 × 21 =
  10. 10.Digital root of 80750 =
  11. 11.Digital root of 60091 =
  12. 12.Digital root of 16085 =
  13. 13.Digital root of 88 × 55 =
  14. 14.Digital root of 57 × 39 =
  15. 15.Digital root of 42 × 83 =
  16. 16.Digital root of 69 × 33 =
  17. 17.Digital root of 41278 =
  18. 18.Digital root of 65 × 74 =
  19. 19.Digital root of 27272 =
  20. 20.Digital root of 96 × 97 =
  21. 21.Digital root of 20 × 23 =
  22. 22.Digital root of 49179 =
  23. 23.Digital root of 66 × 74 =
  24. 24.Digital root of 68890 =
  25. 25.Digital root of 96281 =
  26. 26.Digital root of 90 × 90 =
  27. 27.Digital root of 80716 =
  28. 28.Digital root of 26167 =
  29. 29.Digital root of 37 × 30 =
  30. 30.Digital root of 17154 =
  31. 31.Digital root of 79230 =
  32. 32.Digital root of 42481 =
  33. 33.Digital root of 90611 =
  34. 34.Digital root of 38 × 33 =
  35. 35.Digital root of 21 × 22 =
  36. 36.Digital root of 23 × 70 =
  37. 37.Digital root of 29195 =
  38. 38.Digital root of 96340 =
  39. 39.Digital root of 67894 =
  40. 40.Digital root of 73509 =

Answer key

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

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