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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 287 · 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 46728 =
  2. 2.Digital root of 91000 =
  3. 3.Digital root of 33 × 62 =
  4. 4.Digital root of 41 × 32 =
  5. 5.Digital root of 31 × 32 =
  6. 6.Digital root of 98 × 32 =
  7. 7.Digital root of 35554 =
  8. 8.Digital root of 27115 =
  9. 9.Digital root of 34635 =
  10. 10.Digital root of 95340 =
  11. 11.Digital root of 6795 =
  12. 12.Digital root of 29 × 51 =
  13. 13.Digital root of 70076 =
  14. 14.Digital root of 89 × 83 =
  15. 15.Digital root of 60254 =
  16. 16.Digital root of 11829 =
  17. 17.Digital root of 12288 =
  18. 18.Digital root of 26890 =
  19. 19.Digital root of 61549 =
  20. 20.Digital root of 54 × 98 =
  21. 21.Digital root of 59154 =
  22. 22.Digital root of 54 × 35 =
  23. 23.Digital root of 33 × 79 =
  24. 24.Digital root of 60 × 29 =
  25. 25.Digital root of 32922 =
  26. 26.Digital root of 88 × 95 =
  27. 27.Digital root of 25 × 68 =
  28. 28.Digital root of 29 × 51 =
  29. 29.Digital root of 13 × 93 =
  30. 30.Digital root of 75 × 40 =
  31. 31.Digital root of 86732 =
  32. 32.Digital root of 87616 =
  33. 33.Digital root of 81556 =
  34. 34.Digital root of 37910 =
  35. 35.Digital root of 63 × 96 =
  36. 36.Digital root of 61 × 35 =
  37. 37.Digital root of 90 × 30 =
  38. 38.Digital root of 63 × 91 =
  39. 39.Digital root of 20 × 63 =
  40. 40.Digital root of 19880 =

Answer key

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

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