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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 606 · 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 29 × 60 =
  2. 2.Digital root of 59 × 60 =
  3. 3.Digital root of 54839 =
  4. 4.Digital root of 47085 =
  5. 5.Digital root of 20537 =
  6. 6.Digital root of 31801 =
  7. 7.Digital root of 4593 =
  8. 8.Digital root of 69 × 60 =
  9. 9.Digital root of 77789 =
  10. 10.Digital root of 28719 =
  11. 11.Digital root of 39179 =
  12. 12.Digital root of 28544 =
  13. 13.Digital root of 17 × 35 =
  14. 14.Digital root of 93 × 16 =
  15. 15.Digital root of 38392 =
  16. 16.Digital root of 83 × 59 =
  17. 17.Digital root of 47 × 29 =
  18. 18.Digital root of 96 × 53 =
  19. 19.Digital root of 40 × 66 =
  20. 20.Digital root of 86 × 75 =
  21. 21.Digital root of 61102 =
  22. 22.Digital root of 49 × 31 =
  23. 23.Digital root of 16 × 31 =
  24. 24.Digital root of 41113 =
  25. 25.Digital root of 63 × 38 =
  26. 26.Digital root of 17047 =
  27. 27.Digital root of 75 × 25 =
  28. 28.Digital root of 66024 =
  29. 29.Digital root of 16466 =
  30. 30.Digital root of 10324 =
  31. 31.Digital root of 79679 =
  32. 32.Digital root of 34774 =
  33. 33.Digital root of 69 × 26 =
  34. 34.Digital root of 98 × 32 =
  35. 35.Digital root of 62 × 56 =
  36. 36.Digital root of 16 × 94 =
  37. 37.Digital root of 62 × 74 =
  38. 38.Digital root of 28 × 96 =
  39. 39.Digital root of 10490 =
  40. 40.Digital root of 93007 =

Answer key

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

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