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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 849 · 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 35755 =
  2. 2.Digital root of 97180 =
  3. 3.Digital root of 96127 =
  4. 4.Digital root of 13128 =
  5. 5.Digital root of 68 × 69 =
  6. 6.Digital root of 71364 =
  7. 7.Digital root of 62 × 45 =
  8. 8.Digital root of 10108 =
  9. 9.Digital root of 95 × 90 =
  10. 10.Digital root of 89 × 85 =
  11. 11.Digital root of 68 × 62 =
  12. 12.Digital root of 20 × 99 =
  13. 13.Digital root of 39375 =
  14. 14.Digital root of 15027 =
  15. 15.Digital root of 62531 =
  16. 16.Digital root of 78814 =
  17. 17.Digital root of 92200 =
  18. 18.Digital root of 52760 =
  19. 19.Digital root of 45576 =
  20. 20.Digital root of 26731 =
  21. 21.Digital root of 60937 =
  22. 22.Digital root of 29 × 65 =
  23. 23.Digital root of 97341 =
  24. 24.Digital root of 73 × 16 =
  25. 25.Digital root of 92 × 90 =
  26. 26.Digital root of 18060 =
  27. 27.Digital root of 46148 =
  28. 28.Digital root of 51 × 13 =
  29. 29.Digital root of 12228 =
  30. 30.Digital root of 91163 =
  31. 31.Digital root of 10744 =
  32. 32.Digital root of 47 × 23 =
  33. 33.Digital root of 69 × 52 =
  34. 34.Digital root of 91090 =
  35. 35.Digital root of 96 × 67 =
  36. 36.Digital root of 12 × 21 =
  37. 37.Digital root of 8283 =
  38. 38.Digital root of 22 × 62 =
  39. 39.Digital root of 15767 =
  40. 40.Digital root of 14731 =

Answer key

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

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