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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 444 · 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 93 × 56 =
  2. 2.Digital root of 17 × 17 =
  3. 3.Digital root of 14145 =
  4. 4.Digital root of 80 × 80 =
  5. 5.Digital root of 16933 =
  6. 6.Digital root of 25101 =
  7. 7.Digital root of 95 × 68 =
  8. 8.Digital root of 94332 =
  9. 9.Digital root of 71475 =
  10. 10.Digital root of 532 =
  11. 11.Digital root of 42383 =
  12. 12.Digital root of 3019 =
  13. 13.Digital root of 33 × 63 =
  14. 14.Digital root of 8904 =
  15. 15.Digital root of 35 × 78 =
  16. 16.Digital root of 25 × 51 =
  17. 17.Digital root of 66833 =
  18. 18.Digital root of 62 × 27 =
  19. 19.Digital root of 86171 =
  20. 20.Digital root of 86129 =
  21. 21.Digital root of 71 × 45 =
  22. 22.Digital root of 49984 =
  23. 23.Digital root of 8671 =
  24. 24.Digital root of 67196 =
  25. 25.Digital root of 3493 =
  26. 26.Digital root of 40 × 29 =
  27. 27.Digital root of 35 × 21 =
  28. 28.Digital root of 14443 =
  29. 29.Digital root of 86959 =
  30. 30.Digital root of 78453 =
  31. 31.Digital root of 33944 =
  32. 32.Digital root of 94 × 22 =
  33. 33.Digital root of 35 × 14 =
  34. 34.Digital root of 45712 =
  35. 35.Digital root of 789 =
  36. 36.Digital root of 27 × 15 =
  37. 37.Digital root of 89 × 91 =
  38. 38.Digital root of 17217 =
  39. 39.Digital root of 51019 =
  40. 40.Digital root of 87319 =

Answer key

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

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