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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 657 · 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 44742 =
  2. 2.Digital root of 52789 =
  3. 3.Digital root of 26786 =
  4. 4.Digital root of 36686 =
  5. 5.Digital root of 78 × 19 =
  6. 6.Digital root of 17 × 64 =
  7. 7.Digital root of 40709 =
  8. 8.Digital root of 56 × 16 =
  9. 9.Digital root of 72 × 45 =
  10. 10.Digital root of 74 × 19 =
  11. 11.Digital root of 23 × 27 =
  12. 12.Digital root of 37240 =
  13. 13.Digital root of 20211 =
  14. 14.Digital root of 88254 =
  15. 15.Digital root of 62722 =
  16. 16.Digital root of 41 × 75 =
  17. 17.Digital root of 59 × 80 =
  18. 18.Digital root of 61 × 75 =
  19. 19.Digital root of 40420 =
  20. 20.Digital root of 10824 =
  21. 21.Digital root of 18236 =
  22. 22.Digital root of 39396 =
  23. 23.Digital root of 29183 =
  24. 24.Digital root of 96892 =
  25. 25.Digital root of 70 × 21 =
  26. 26.Digital root of 83 × 55 =
  27. 27.Digital root of 41 × 40 =
  28. 28.Digital root of 91 × 22 =
  29. 29.Digital root of 52306 =
  30. 30.Digital root of 79358 =
  31. 31.Digital root of 92 × 32 =
  32. 32.Digital root of 91059 =
  33. 33.Digital root of 87370 =
  34. 34.Digital root of 78 × 87 =
  35. 35.Digital root of 7730 =
  36. 36.Digital root of 80 × 44 =
  37. 37.Digital root of 63630 =
  38. 38.Digital root of 60 × 59 =
  39. 39.Digital root of 44 × 87 =
  40. 40.Digital root of 7453 =

Answer key

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

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