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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 627 · 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 44401 =
  2. 2.Digital root of 79 × 81 =
  3. 3.Digital root of 81546 =
  4. 4.Digital root of 11884 =
  5. 5.Digital root of 38422 =
  6. 6.Digital root of 26 × 80 =
  7. 7.Digital root of 9033 =
  8. 8.Digital root of 68 × 92 =
  9. 9.Digital root of 43557 =
  10. 10.Digital root of 49226 =
  11. 11.Digital root of 84 × 75 =
  12. 12.Digital root of 45 × 99 =
  13. 13.Digital root of 22426 =
  14. 14.Digital root of 35 × 39 =
  15. 15.Digital root of 91064 =
  16. 16.Digital root of 47841 =
  17. 17.Digital root of 40 × 29 =
  18. 18.Digital root of 97 × 46 =
  19. 19.Digital root of 63 × 73 =
  20. 20.Digital root of 42 × 65 =
  21. 21.Digital root of 94 × 63 =
  22. 22.Digital root of 95147 =
  23. 23.Digital root of 48 × 90 =
  24. 24.Digital root of 71 × 32 =
  25. 25.Digital root of 67509 =
  26. 26.Digital root of 55183 =
  27. 27.Digital root of 92 × 73 =
  28. 28.Digital root of 78 × 37 =
  29. 29.Digital root of 12 × 15 =
  30. 30.Digital root of 26 × 38 =
  31. 31.Digital root of 70 × 24 =
  32. 32.Digital root of 26324 =
  33. 33.Digital root of 784 =
  34. 34.Digital root of 93622 =
  35. 35.Digital root of 72 × 65 =
  36. 36.Digital root of 7808 =
  37. 37.Digital root of 7334 =
  38. 38.Digital root of 76317 =
  39. 39.Digital root of 26654 =
  40. 40.Digital root of 63668 =

Answer key

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

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