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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 992 · 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 75 × 76 =
  2. 2.Digital root of 6391 =
  3. 3.Digital root of 99932 =
  4. 4.Digital root of 38443 =
  5. 5.Digital root of 64968 =
  6. 6.Digital root of 71 × 96 =
  7. 7.Digital root of 97299 =
  8. 8.Digital root of 72421 =
  9. 9.Digital root of 12359 =
  10. 10.Digital root of 27 × 60 =
  11. 11.Digital root of 74 × 21 =
  12. 12.Digital root of 34 × 82 =
  13. 13.Digital root of 68 × 57 =
  14. 14.Digital root of 39540 =
  15. 15.Digital root of 98411 =
  16. 16.Digital root of 91 × 83 =
  17. 17.Digital root of 68 × 94 =
  18. 18.Digital root of 39796 =
  19. 19.Digital root of 71 × 76 =
  20. 20.Digital root of 40 × 20 =
  21. 21.Digital root of 97 × 39 =
  22. 22.Digital root of 18 × 76 =
  23. 23.Digital root of 44656 =
  24. 24.Digital root of 12 × 35 =
  25. 25.Digital root of 62381 =
  26. 26.Digital root of 21587 =
  27. 27.Digital root of 73 × 54 =
  28. 28.Digital root of 2496 =
  29. 29.Digital root of 26198 =
  30. 30.Digital root of 85 × 30 =
  31. 31.Digital root of 46 × 38 =
  32. 32.Digital root of 73 × 38 =
  33. 33.Digital root of 60928 =
  34. 34.Digital root of 4978 =
  35. 35.Digital root of 44149 =
  36. 36.Digital root of 27199 =
  37. 37.Digital root of 91 × 12 =
  38. 38.Digital root of 12693 =
  39. 39.Digital root of 71315 =
  40. 40.Digital root of 59710 =

Answer key

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

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