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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 520 · 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 32 × 23 =
  2. 2.Digital root of 25234 =
  3. 3.Digital root of 76302 =
  4. 4.Digital root of 61 × 51 =
  5. 5.Digital root of 26 × 85 =
  6. 6.Digital root of 43973 =
  7. 7.Digital root of 70 × 57 =
  8. 8.Digital root of 13680 =
  9. 9.Digital root of 54065 =
  10. 10.Digital root of 13 × 87 =
  11. 11.Digital root of 86708 =
  12. 12.Digital root of 16573 =
  13. 13.Digital root of 79762 =
  14. 14.Digital root of 99 × 78 =
  15. 15.Digital root of 24 × 66 =
  16. 16.Digital root of 356 =
  17. 17.Digital root of 27715 =
  18. 18.Digital root of 57 × 50 =
  19. 19.Digital root of 70277 =
  20. 20.Digital root of 92397 =
  21. 21.Digital root of 52352 =
  22. 22.Digital root of 96395 =
  23. 23.Digital root of 80524 =
  24. 24.Digital root of 3597 =
  25. 25.Digital root of 78 × 63 =
  26. 26.Digital root of 91752 =
  27. 27.Digital root of 88471 =
  28. 28.Digital root of 60 × 69 =
  29. 29.Digital root of 77 × 81 =
  30. 30.Digital root of 24 × 92 =
  31. 31.Digital root of 1599 =
  32. 32.Digital root of 24 × 53 =
  33. 33.Digital root of 59439 =
  34. 34.Digital root of 75584 =
  35. 35.Digital root of 86 × 88 =
  36. 36.Digital root of 50955 =
  37. 37.Digital root of 54801 =
  38. 38.Digital root of 31 × 36 =
  39. 39.Digital root of 42526 =
  40. 40.Digital root of 67134 =

Answer key

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

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