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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 797 · 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 30302 =
  2. 2.Digital root of 54408 =
  3. 3.Digital root of 10809 =
  4. 4.Digital root of 65 × 19 =
  5. 5.Digital root of 96493 =
  6. 6.Digital root of 17 × 54 =
  7. 7.Digital root of 55249 =
  8. 8.Digital root of 16238 =
  9. 9.Digital root of 29108 =
  10. 10.Digital root of 26980 =
  11. 11.Digital root of 188 =
  12. 12.Digital root of 70 × 37 =
  13. 13.Digital root of 17 × 54 =
  14. 14.Digital root of 65409 =
  15. 15.Digital root of 43 × 79 =
  16. 16.Digital root of 83 × 16 =
  17. 17.Digital root of 83873 =
  18. 18.Digital root of 55 × 14 =
  19. 19.Digital root of 37764 =
  20. 20.Digital root of 39 × 94 =
  21. 21.Digital root of 60980 =
  22. 22.Digital root of 17 × 30 =
  23. 23.Digital root of 50178 =
  24. 24.Digital root of 9993 =
  25. 25.Digital root of 42896 =
  26. 26.Digital root of 32 × 44 =
  27. 27.Digital root of 37 × 42 =
  28. 28.Digital root of 33121 =
  29. 29.Digital root of 31 × 51 =
  30. 30.Digital root of 80 × 25 =
  31. 31.Digital root of 380 =
  32. 32.Digital root of 26 × 51 =
  33. 33.Digital root of 84306 =
  34. 34.Digital root of 22349 =
  35. 35.Digital root of 33277 =
  36. 36.Digital root of 32174 =
  37. 37.Digital root of 87 × 85 =
  38. 38.Digital root of 98 × 34 =
  39. 39.Digital root of 37769 =
  40. 40.Digital root of 21673 =

Answer key

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

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