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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 293 · 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 35 × 28 =
  2. 2.Digital root of 32610 =
  3. 3.Digital root of 69984 =
  4. 4.Digital root of 40 × 96 =
  5. 5.Digital root of 87 × 93 =
  6. 6.Digital root of 76952 =
  7. 7.Digital root of 54 × 14 =
  8. 8.Digital root of 14 × 97 =
  9. 9.Digital root of 34789 =
  10. 10.Digital root of 95 × 45 =
  11. 11.Digital root of 13 × 55 =
  12. 12.Digital root of 62534 =
  13. 13.Digital root of 95 × 80 =
  14. 14.Digital root of 74 × 66 =
  15. 15.Digital root of 86990 =
  16. 16.Digital root of 558 =
  17. 17.Digital root of 94195 =
  18. 18.Digital root of 19533 =
  19. 19.Digital root of 56164 =
  20. 20.Digital root of 26099 =
  21. 21.Digital root of 3234 =
  22. 22.Digital root of 70698 =
  23. 23.Digital root of 94 × 23 =
  24. 24.Digital root of 43 × 35 =
  25. 25.Digital root of 53 × 55 =
  26. 26.Digital root of 11090 =
  27. 27.Digital root of 28 × 65 =
  28. 28.Digital root of 1030 =
  29. 29.Digital root of 51 × 57 =
  30. 30.Digital root of 93109 =
  31. 31.Digital root of 74865 =
  32. 32.Digital root of 8082 =
  33. 33.Digital root of 80123 =
  34. 34.Digital root of 76 × 13 =
  35. 35.Digital root of 31 × 63 =
  36. 36.Digital root of 43261 =
  37. 37.Digital root of 14646 =
  38. 38.Digital root of 89 × 37 =
  39. 39.Digital root of 20 × 79 =
  40. 40.Digital root of 47 × 90 =

Answer key

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

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