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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 385 · 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 42567 =
  2. 2.Digital root of 72519 =
  3. 3.Digital root of 90 × 99 =
  4. 4.Digital root of 94148 =
  5. 5.Digital root of 72997 =
  6. 6.Digital root of 99 × 21 =
  7. 7.Digital root of 85 × 42 =
  8. 8.Digital root of 35 × 46 =
  9. 9.Digital root of 56 × 37 =
  10. 10.Digital root of 69631 =
  11. 11.Digital root of 72 × 99 =
  12. 12.Digital root of 91 × 75 =
  13. 13.Digital root of 15201 =
  14. 14.Digital root of 57382 =
  15. 15.Digital root of 86872 =
  16. 16.Digital root of 5955 =
  17. 17.Digital root of 47152 =
  18. 18.Digital root of 58 × 77 =
  19. 19.Digital root of 33 × 47 =
  20. 20.Digital root of 30 × 18 =
  21. 21.Digital root of 12 × 45 =
  22. 22.Digital root of 4877 =
  23. 23.Digital root of 36190 =
  24. 24.Digital root of 50369 =
  25. 25.Digital root of 5195 =
  26. 26.Digital root of 99278 =
  27. 27.Digital root of 23 × 93 =
  28. 28.Digital root of 48 × 12 =
  29. 29.Digital root of 48 × 14 =
  30. 30.Digital root of 77742 =
  31. 31.Digital root of 64457 =
  32. 32.Digital root of 6220 =
  33. 33.Digital root of 49 × 19 =
  34. 34.Digital root of 93963 =
  35. 35.Digital root of 36 × 94 =
  36. 36.Digital root of 50 × 47 =
  37. 37.Digital root of 40 × 13 =
  38. 38.Digital root of 78668 =
  39. 39.Digital root of 3792 =
  40. 40.Digital root of 98 × 74 =

Answer key

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

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