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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 27 · 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 66002 =
  2. 2.Digital root of 3525 =
  3. 3.Digital root of 42310 =
  4. 4.Digital root of 19603 =
  5. 5.Digital root of 98113 =
  6. 6.Digital root of 42465 =
  7. 7.Digital root of 6100 =
  8. 8.Digital root of 33 × 56 =
  9. 9.Digital root of 36 × 71 =
  10. 10.Digital root of 74 × 31 =
  11. 11.Digital root of 18 × 91 =
  12. 12.Digital root of 16991 =
  13. 13.Digital root of 20 × 13 =
  14. 14.Digital root of 17051 =
  15. 15.Digital root of 50 × 77 =
  16. 16.Digital root of 83 × 98 =
  17. 17.Digital root of 92379 =
  18. 18.Digital root of 22014 =
  19. 19.Digital root of 77 × 43 =
  20. 20.Digital root of 15 × 40 =
  21. 21.Digital root of 61 × 51 =
  22. 22.Digital root of 80113 =
  23. 23.Digital root of 67 × 85 =
  24. 24.Digital root of 74782 =
  25. 25.Digital root of 83 × 54 =
  26. 26.Digital root of 70558 =
  27. 27.Digital root of 46 × 17 =
  28. 28.Digital root of 50994 =
  29. 29.Digital root of 91849 =
  30. 30.Digital root of 24264 =
  31. 31.Digital root of 31 × 89 =
  32. 32.Digital root of 22260 =
  33. 33.Digital root of 86 × 76 =
  34. 34.Digital root of 25156 =
  35. 35.Digital root of 19784 =
  36. 36.Digital root of 32 × 64 =
  37. 37.Digital root of 29940 =
  38. 38.Digital root of 73 × 68 =
  39. 39.Digital root of 55 × 81 =
  40. 40.Digital root of 76753 =

Answer key

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

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