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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 856 · 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 33847 =
  2. 2.Digital root of 72 × 26 =
  3. 3.Digital root of 32794 =
  4. 4.Digital root of 37 × 23 =
  5. 5.Digital root of 55792 =
  6. 6.Digital root of 41 × 69 =
  7. 7.Digital root of 37 × 80 =
  8. 8.Digital root of 48 × 13 =
  9. 9.Digital root of 22338 =
  10. 10.Digital root of 77 × 83 =
  11. 11.Digital root of 71062 =
  12. 12.Digital root of 75 × 93 =
  13. 13.Digital root of 32061 =
  14. 14.Digital root of 24715 =
  15. 15.Digital root of 98352 =
  16. 16.Digital root of 23961 =
  17. 17.Digital root of 73 × 35 =
  18. 18.Digital root of 25836 =
  19. 19.Digital root of 89 × 67 =
  20. 20.Digital root of 85469 =
  21. 21.Digital root of 51638 =
  22. 22.Digital root of 62 × 94 =
  23. 23.Digital root of 98 × 14 =
  24. 24.Digital root of 72143 =
  25. 25.Digital root of 30 × 49 =
  26. 26.Digital root of 20417 =
  27. 27.Digital root of 35 × 29 =
  28. 28.Digital root of 8373 =
  29. 29.Digital root of 42217 =
  30. 30.Digital root of 94864 =
  31. 31.Digital root of 33411 =
  32. 32.Digital root of 46455 =
  33. 33.Digital root of 48233 =
  34. 34.Digital root of 38482 =
  35. 35.Digital root of 71243 =
  36. 36.Digital root of 28086 =
  37. 37.Digital root of 68368 =
  38. 38.Digital root of 32802 =
  39. 39.Digital root of 16908 =
  40. 40.Digital root of 41 × 38 =

Answer key

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

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