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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 969 · 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 32 × 96 =
  2. 2.Digital root of 90542 =
  3. 3.Digital root of 17 × 99 =
  4. 4.Digital root of 22 × 74 =
  5. 5.Digital root of 24749 =
  6. 6.Digital root of 75788 =
  7. 7.Digital root of 34 × 31 =
  8. 8.Digital root of 18 × 30 =
  9. 9.Digital root of 92 × 36 =
  10. 10.Digital root of 48 × 23 =
  11. 11.Digital root of 41 × 40 =
  12. 12.Digital root of 96741 =
  13. 13.Digital root of 65228 =
  14. 14.Digital root of 90 × 36 =
  15. 15.Digital root of 34182 =
  16. 16.Digital root of 76 × 24 =
  17. 17.Digital root of 70035 =
  18. 18.Digital root of 15 × 84 =
  19. 19.Digital root of 63973 =
  20. 20.Digital root of 96 × 40 =
  21. 21.Digital root of 21804 =
  22. 22.Digital root of 68 × 29 =
  23. 23.Digital root of 64 × 98 =
  24. 24.Digital root of 974 =
  25. 25.Digital root of 26745 =
  26. 26.Digital root of 25310 =
  27. 27.Digital root of 41435 =
  28. 28.Digital root of 4089 =
  29. 29.Digital root of 79424 =
  30. 30.Digital root of 85759 =
  31. 31.Digital root of 50 × 36 =
  32. 32.Digital root of 85 × 67 =
  33. 33.Digital root of 45 × 78 =
  34. 34.Digital root of 42 × 94 =
  35. 35.Digital root of 28191 =
  36. 36.Digital root of 87575 =
  37. 37.Digital root of 45808 =
  38. 38.Digital root of 49 × 32 =
  39. 39.Digital root of 47515 =
  40. 40.Digital root of 98 × 12 =

Answer key

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

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