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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 741 · 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 69 × 43 =
  2. 2.Digital root of 93527 =
  3. 3.Digital root of 35774 =
  4. 4.Digital root of 44350 =
  5. 5.Digital root of 16 × 15 =
  6. 6.Digital root of 68651 =
  7. 7.Digital root of 61 × 72 =
  8. 8.Digital root of 18 × 81 =
  9. 9.Digital root of 46529 =
  10. 10.Digital root of 23120 =
  11. 11.Digital root of 15 × 17 =
  12. 12.Digital root of 87747 =
  13. 13.Digital root of 43 × 13 =
  14. 14.Digital root of 21145 =
  15. 15.Digital root of 16 × 35 =
  16. 16.Digital root of 32 × 92 =
  17. 17.Digital root of 18 × 22 =
  18. 18.Digital root of 68319 =
  19. 19.Digital root of 24 × 22 =
  20. 20.Digital root of 71557 =
  21. 21.Digital root of 45658 =
  22. 22.Digital root of 68257 =
  23. 23.Digital root of 29 × 48 =
  24. 24.Digital root of 27594 =
  25. 25.Digital root of 31939 =
  26. 26.Digital root of 77 × 59 =
  27. 27.Digital root of 96 × 15 =
  28. 28.Digital root of 35000 =
  29. 29.Digital root of 87568 =
  30. 30.Digital root of 47 × 30 =
  31. 31.Digital root of 77 × 93 =
  32. 32.Digital root of 69 × 78 =
  33. 33.Digital root of 77049 =
  34. 34.Digital root of 81 × 36 =
  35. 35.Digital root of 54 × 35 =
  36. 36.Digital root of 65345 =
  37. 37.Digital root of 20 × 20 =
  38. 38.Digital root of 83199 =
  39. 39.Digital root of 59105 =
  40. 40.Digital root of 57246 =

Answer key

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

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