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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 794 · 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 28 × 63 =
  2. 2.Digital root of 35424 =
  3. 3.Digital root of 78759 =
  4. 4.Digital root of 76752 =
  5. 5.Digital root of 10985 =
  6. 6.Digital root of 36 × 32 =
  7. 7.Digital root of 33 × 51 =
  8. 8.Digital root of 51 × 41 =
  9. 9.Digital root of 96 × 40 =
  10. 10.Digital root of 66763 =
  11. 11.Digital root of 33047 =
  12. 12.Digital root of 30 × 27 =
  13. 13.Digital root of 95305 =
  14. 14.Digital root of 19813 =
  15. 15.Digital root of 49277 =
  16. 16.Digital root of 47377 =
  17. 17.Digital root of 58532 =
  18. 18.Digital root of 80304 =
  19. 19.Digital root of 60353 =
  20. 20.Digital root of 70275 =
  21. 21.Digital root of 78288 =
  22. 22.Digital root of 28777 =
  23. 23.Digital root of 70 × 82 =
  24. 24.Digital root of 49 × 14 =
  25. 25.Digital root of 47978 =
  26. 26.Digital root of 33 × 32 =
  27. 27.Digital root of 57 × 55 =
  28. 28.Digital root of 85985 =
  29. 29.Digital root of 13123 =
  30. 30.Digital root of 26190 =
  31. 31.Digital root of 85536 =
  32. 32.Digital root of 58809 =
  33. 33.Digital root of 40 × 76 =
  34. 34.Digital root of 16711 =
  35. 35.Digital root of 48545 =
  36. 36.Digital root of 33114 =
  37. 37.Digital root of 84 × 25 =
  38. 38.Digital root of 49176 =
  39. 39.Digital root of 86546 =
  40. 40.Digital root of 30 × 99 =

Answer key

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

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