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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 747 · 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 85 × 27 =
  2. 2.Digital root of 85 × 34 =
  3. 3.Digital root of 24567 =
  4. 4.Digital root of 60615 =
  5. 5.Digital root of 48 × 51 =
  6. 6.Digital root of 5443 =
  7. 7.Digital root of 49 × 26 =
  8. 8.Digital root of 59 × 67 =
  9. 9.Digital root of 87 × 87 =
  10. 10.Digital root of 15708 =
  11. 11.Digital root of 72448 =
  12. 12.Digital root of 34 × 72 =
  13. 13.Digital root of 93041 =
  14. 14.Digital root of 63 × 35 =
  15. 15.Digital root of 92 × 31 =
  16. 16.Digital root of 93 × 90 =
  17. 17.Digital root of 62 × 25 =
  18. 18.Digital root of 55444 =
  19. 19.Digital root of 43283 =
  20. 20.Digital root of 60171 =
  21. 21.Digital root of 73 × 50 =
  22. 22.Digital root of 17830 =
  23. 23.Digital root of 45 × 19 =
  24. 24.Digital root of 22 × 50 =
  25. 25.Digital root of 33998 =
  26. 26.Digital root of 35887 =
  27. 27.Digital root of 87487 =
  28. 28.Digital root of 24 × 60 =
  29. 29.Digital root of 56995 =
  30. 30.Digital root of 63528 =
  31. 31.Digital root of 95 × 26 =
  32. 32.Digital root of 96 × 84 =
  33. 33.Digital root of 61 × 97 =
  34. 34.Digital root of 31 × 26 =
  35. 35.Digital root of 39485 =
  36. 36.Digital root of 66100 =
  37. 37.Digital root of 75 × 38 =
  38. 38.Digital root of 16384 =
  39. 39.Digital root of 59 × 16 =
  40. 40.Digital root of 41467 =

Answer key

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

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