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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 39 · 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 45761 =
  2. 2.Digital root of 93888 =
  3. 3.Digital root of 65 × 95 =
  4. 4.Digital root of 59023 =
  5. 5.Digital root of 14683 =
  6. 6.Digital root of 70709 =
  7. 7.Digital root of 36 × 50 =
  8. 8.Digital root of 70 × 27 =
  9. 9.Digital root of 26382 =
  10. 10.Digital root of 92 × 21 =
  11. 11.Digital root of 7579 =
  12. 12.Digital root of 72 × 84 =
  13. 13.Digital root of 2588 =
  14. 14.Digital root of 97 × 88 =
  15. 15.Digital root of 71 × 48 =
  16. 16.Digital root of 9984 =
  17. 17.Digital root of 82937 =
  18. 18.Digital root of 2743 =
  19. 19.Digital root of 60266 =
  20. 20.Digital root of 51631 =
  21. 21.Digital root of 85008 =
  22. 22.Digital root of 95222 =
  23. 23.Digital root of 29 × 71 =
  24. 24.Digital root of 17 × 82 =
  25. 25.Digital root of 14029 =
  26. 26.Digital root of 39924 =
  27. 27.Digital root of 25819 =
  28. 28.Digital root of 68347 =
  29. 29.Digital root of 53 × 98 =
  30. 30.Digital root of 81857 =
  31. 31.Digital root of 57 × 87 =
  32. 32.Digital root of 14 × 97 =
  33. 33.Digital root of 31 × 22 =
  34. 34.Digital root of 96 × 54 =
  35. 35.Digital root of 46 × 72 =
  36. 36.Digital root of 32381 =
  37. 37.Digital root of 72 × 25 =
  38. 38.Digital root of 71241 =
  39. 39.Digital root of 36 × 37 =
  40. 40.Digital root of 50298 =

Answer key

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

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