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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 641 · 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 6523 =
  2. 2.Digital root of 33907 =
  3. 3.Digital root of 25 × 32 =
  4. 4.Digital root of 94 × 48 =
  5. 5.Digital root of 3770 =
  6. 6.Digital root of 20881 =
  7. 7.Digital root of 4370 =
  8. 8.Digital root of 1719 =
  9. 9.Digital root of 22 × 80 =
  10. 10.Digital root of 30680 =
  11. 11.Digital root of 18178 =
  12. 12.Digital root of 95146 =
  13. 13.Digital root of 25 × 18 =
  14. 14.Digital root of 19915 =
  15. 15.Digital root of 61137 =
  16. 16.Digital root of 56854 =
  17. 17.Digital root of 27 × 78 =
  18. 18.Digital root of 77920 =
  19. 19.Digital root of 58853 =
  20. 20.Digital root of 93 × 96 =
  21. 21.Digital root of 57716 =
  22. 22.Digital root of 51 × 95 =
  23. 23.Digital root of 75130 =
  24. 24.Digital root of 49 × 24 =
  25. 25.Digital root of 73121 =
  26. 26.Digital root of 69 × 64 =
  27. 27.Digital root of 57423 =
  28. 28.Digital root of 34 × 32 =
  29. 29.Digital root of 29403 =
  30. 30.Digital root of 52575 =
  31. 31.Digital root of 85 × 95 =
  32. 32.Digital root of 14 × 65 =
  33. 33.Digital root of 32 × 67 =
  34. 34.Digital root of 52 × 26 =
  35. 35.Digital root of 44 × 16 =
  36. 36.Digital root of 67558 =
  37. 37.Digital root of 22270 =
  38. 38.Digital root of 21932 =
  39. 39.Digital root of 69885 =
  40. 40.Digital root of 12868 =

Answer key

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

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