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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 804 · 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 54 × 29 =
  2. 2.Digital root of 95004 =
  3. 3.Digital root of 46439 =
  4. 4.Digital root of 73 × 88 =
  5. 5.Digital root of 24239 =
  6. 6.Digital root of 98919 =
  7. 7.Digital root of 5276 =
  8. 8.Digital root of 58303 =
  9. 9.Digital root of 39 × 45 =
  10. 10.Digital root of 48478 =
  11. 11.Digital root of 997 =
  12. 12.Digital root of 17466 =
  13. 13.Digital root of 21 × 86 =
  14. 14.Digital root of 66 × 14 =
  15. 15.Digital root of 78159 =
  16. 16.Digital root of 66 × 94 =
  17. 17.Digital root of 25833 =
  18. 18.Digital root of 88 × 31 =
  19. 19.Digital root of 91 × 15 =
  20. 20.Digital root of 55960 =
  21. 21.Digital root of 1942 =
  22. 22.Digital root of 74 × 18 =
  23. 23.Digital root of 36 × 33 =
  24. 24.Digital root of 54149 =
  25. 25.Digital root of 49237 =
  26. 26.Digital root of 55723 =
  27. 27.Digital root of 25 × 71 =
  28. 28.Digital root of 80 × 18 =
  29. 29.Digital root of 50 × 54 =
  30. 30.Digital root of 17924 =
  31. 31.Digital root of 72 × 29 =
  32. 32.Digital root of 59150 =
  33. 33.Digital root of 87463 =
  34. 34.Digital root of 22 × 43 =
  35. 35.Digital root of 61 × 79 =
  36. 36.Digital root of 66 × 51 =
  37. 37.Digital root of 34853 =
  38. 38.Digital root of 67 × 62 =
  39. 39.Digital root of 95511 =
  40. 40.Digital root of 94 × 19 =

Answer key

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

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