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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 801 · 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 66692 =
  2. 2.Digital root of 49993 =
  3. 3.Digital root of 25 × 33 =
  4. 4.Digital root of 16 × 18 =
  5. 5.Digital root of 18100 =
  6. 6.Digital root of 95843 =
  7. 7.Digital root of 36 × 32 =
  8. 8.Digital root of 98628 =
  9. 9.Digital root of 16315 =
  10. 10.Digital root of 86447 =
  11. 11.Digital root of 68 × 39 =
  12. 12.Digital root of 47793 =
  13. 13.Digital root of 32112 =
  14. 14.Digital root of 33798 =
  15. 15.Digital root of 80790 =
  16. 16.Digital root of 21 × 96 =
  17. 17.Digital root of 83 × 68 =
  18. 18.Digital root of 68918 =
  19. 19.Digital root of 54769 =
  20. 20.Digital root of 12767 =
  21. 21.Digital root of 84 × 94 =
  22. 22.Digital root of 23 × 60 =
  23. 23.Digital root of 47 × 67 =
  24. 24.Digital root of 19235 =
  25. 25.Digital root of 16445 =
  26. 26.Digital root of 93 × 13 =
  27. 27.Digital root of 19 × 73 =
  28. 28.Digital root of 21 × 41 =
  29. 29.Digital root of 15630 =
  30. 30.Digital root of 66 × 15 =
  31. 31.Digital root of 36 × 91 =
  32. 32.Digital root of 44 × 57 =
  33. 33.Digital root of 829 =
  34. 34.Digital root of 17 × 37 =
  35. 35.Digital root of 46826 =
  36. 36.Digital root of 65211 =
  37. 37.Digital root of 51 × 34 =
  38. 38.Digital root of 65 × 86 =
  39. 39.Digital root of 80264 =
  40. 40.Digital root of 90082 =

Answer key

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

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