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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 9 · 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 97943 =
  2. 2.Digital root of 8858 =
  3. 3.Digital root of 68 × 65 =
  4. 4.Digital root of 26 × 89 =
  5. 5.Digital root of 78 × 37 =
  6. 6.Digital root of 22 × 84 =
  7. 7.Digital root of 50477 =
  8. 8.Digital root of 98 × 38 =
  9. 9.Digital root of 44675 =
  10. 10.Digital root of 12 × 86 =
  11. 11.Digital root of 90067 =
  12. 12.Digital root of 21110 =
  13. 13.Digital root of 61 × 63 =
  14. 14.Digital root of 85 × 24 =
  15. 15.Digital root of 87721 =
  16. 16.Digital root of 45194 =
  17. 17.Digital root of 32 × 24 =
  18. 18.Digital root of 63966 =
  19. 19.Digital root of 93 × 88 =
  20. 20.Digital root of 18 × 53 =
  21. 21.Digital root of 12 × 41 =
  22. 22.Digital root of 53 × 14 =
  23. 23.Digital root of 87 × 95 =
  24. 24.Digital root of 26 × 14 =
  25. 25.Digital root of 52496 =
  26. 26.Digital root of 14260 =
  27. 27.Digital root of 30 × 16 =
  28. 28.Digital root of 40649 =
  29. 29.Digital root of 78 × 20 =
  30. 30.Digital root of 14791 =
  31. 31.Digital root of 79 × 54 =
  32. 32.Digital root of 71792 =
  33. 33.Digital root of 34849 =
  34. 34.Digital root of 27779 =
  35. 35.Digital root of 288 =
  36. 36.Digital root of 54145 =
  37. 37.Digital root of 88 × 31 =
  38. 38.Digital root of 63 × 62 =
  39. 39.Digital root of 17581 =
  40. 40.Digital root of 91041 =

Answer key

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

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