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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 174 · 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 99658 =
  2. 2.Digital root of 40907 =
  3. 3.Digital root of 60834 =
  4. 4.Digital root of 57456 =
  5. 5.Digital root of 87507 =
  6. 6.Digital root of 61 × 61 =
  7. 7.Digital root of 33568 =
  8. 8.Digital root of 28779 =
  9. 9.Digital root of 92707 =
  10. 10.Digital root of 24496 =
  11. 11.Digital root of 25250 =
  12. 12.Digital root of 271 =
  13. 13.Digital root of 76 × 33 =
  14. 14.Digital root of 65 × 49 =
  15. 15.Digital root of 76955 =
  16. 16.Digital root of 43 × 25 =
  17. 17.Digital root of 96964 =
  18. 18.Digital root of 16 × 41 =
  19. 19.Digital root of 35 × 16 =
  20. 20.Digital root of 62 × 22 =
  21. 21.Digital root of 2441 =
  22. 22.Digital root of 86 × 58 =
  23. 23.Digital root of 62035 =
  24. 24.Digital root of 36 × 42 =
  25. 25.Digital root of 97608 =
  26. 26.Digital root of 37 × 49 =
  27. 27.Digital root of 43 × 85 =
  28. 28.Digital root of 13481 =
  29. 29.Digital root of 26916 =
  30. 30.Digital root of 78672 =
  31. 31.Digital root of 56 × 99 =
  32. 32.Digital root of 75 × 56 =
  33. 33.Digital root of 46419 =
  34. 34.Digital root of 96011 =
  35. 35.Digital root of 31 × 77 =
  36. 36.Digital root of 26 × 90 =
  37. 37.Digital root of 13 × 50 =
  38. 38.Digital root of 97 × 37 =
  39. 39.Digital root of 82 × 49 =
  40. 40.Digital root of 11935 =

Answer key

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

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