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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 165 · 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 53116 =
  2. 2.Digital root of 17440 =
  3. 3.Digital root of 74 × 26 =
  4. 4.Digital root of 59 × 72 =
  5. 5.Digital root of 13588 =
  6. 6.Digital root of 77 × 56 =
  7. 7.Digital root of 7823 =
  8. 8.Digital root of 24298 =
  9. 9.Digital root of 21 × 18 =
  10. 10.Digital root of 93089 =
  11. 11.Digital root of 35 × 66 =
  12. 12.Digital root of 60 × 59 =
  13. 13.Digital root of 45408 =
  14. 14.Digital root of 30139 =
  15. 15.Digital root of 19 × 84 =
  16. 16.Digital root of 86751 =
  17. 17.Digital root of 52332 =
  18. 18.Digital root of 27273 =
  19. 19.Digital root of 32255 =
  20. 20.Digital root of 56290 =
  21. 21.Digital root of 36473 =
  22. 22.Digital root of 57886 =
  23. 23.Digital root of 52343 =
  24. 24.Digital root of 30 × 14 =
  25. 25.Digital root of 83 × 96 =
  26. 26.Digital root of 59 × 35 =
  27. 27.Digital root of 32049 =
  28. 28.Digital root of 80544 =
  29. 29.Digital root of 73 × 91 =
  30. 30.Digital root of 45 × 76 =
  31. 31.Digital root of 47256 =
  32. 32.Digital root of 15 × 51 =
  33. 33.Digital root of 34 × 42 =
  34. 34.Digital root of 82 × 87 =
  35. 35.Digital root of 13 × 37 =
  36. 36.Digital root of 92126 =
  37. 37.Digital root of 29886 =
  38. 38.Digital root of 24401 =
  39. 39.Digital root of 82 × 44 =
  40. 40.Digital root of 76320 =

Answer key

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

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