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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 233 · 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 26170 =
  2. 2.Digital root of 22831 =
  3. 3.Digital root of 97 × 12 =
  4. 4.Digital root of 15902 =
  5. 5.Digital root of 17 × 89 =
  6. 6.Digital root of 9982 =
  7. 7.Digital root of 61002 =
  8. 8.Digital root of 42709 =
  9. 9.Digital root of 62172 =
  10. 10.Digital root of 33 × 26 =
  11. 11.Digital root of 99744 =
  12. 12.Digital root of 86 × 97 =
  13. 13.Digital root of 37406 =
  14. 14.Digital root of 78 × 72 =
  15. 15.Digital root of 93359 =
  16. 16.Digital root of 51 × 97 =
  17. 17.Digital root of 55 × 74 =
  18. 18.Digital root of 75078 =
  19. 19.Digital root of 45 × 51 =
  20. 20.Digital root of 13872 =
  21. 21.Digital root of 32 × 14 =
  22. 22.Digital root of 54 × 87 =
  23. 23.Digital root of 91416 =
  24. 24.Digital root of 15974 =
  25. 25.Digital root of 36542 =
  26. 26.Digital root of 15 × 62 =
  27. 27.Digital root of 95775 =
  28. 28.Digital root of 91409 =
  29. 29.Digital root of 84252 =
  30. 30.Digital root of 82894 =
  31. 31.Digital root of 92 × 98 =
  32. 32.Digital root of 87 × 24 =
  33. 33.Digital root of 59062 =
  34. 34.Digital root of 35009 =
  35. 35.Digital root of 99 × 36 =
  36. 36.Digital root of 24437 =
  37. 37.Digital root of 40744 =
  38. 38.Digital root of 12 × 56 =
  39. 39.Digital root of 41 × 71 =
  40. 40.Digital root of 32 × 27 =

Answer key

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

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