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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 532 · 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 42812 =
  2. 2.Digital root of 144 =
  3. 3.Digital root of 86175 =
  4. 4.Digital root of 68863 =
  5. 5.Digital root of 92803 =
  6. 6.Digital root of 34 × 26 =
  7. 7.Digital root of 43941 =
  8. 8.Digital root of 75288 =
  9. 9.Digital root of 49 × 17 =
  10. 10.Digital root of 54023 =
  11. 11.Digital root of 97251 =
  12. 12.Digital root of 8756 =
  13. 13.Digital root of 50 × 38 =
  14. 14.Digital root of 63 × 68 =
  15. 15.Digital root of 85 × 78 =
  16. 16.Digital root of 29310 =
  17. 17.Digital root of 36 × 49 =
  18. 18.Digital root of 15495 =
  19. 19.Digital root of 14 × 81 =
  20. 20.Digital root of 26088 =
  21. 21.Digital root of 53 × 47 =
  22. 22.Digital root of 43579 =
  23. 23.Digital root of 32 × 46 =
  24. 24.Digital root of 61225 =
  25. 25.Digital root of 18 × 73 =
  26. 26.Digital root of 47 × 35 =
  27. 27.Digital root of 59 × 75 =
  28. 28.Digital root of 89 × 95 =
  29. 29.Digital root of 87643 =
  30. 30.Digital root of 65 × 29 =
  31. 31.Digital root of 77 × 23 =
  32. 32.Digital root of 72 × 13 =
  33. 33.Digital root of 88 × 40 =
  34. 34.Digital root of 96049 =
  35. 35.Digital root of 94 × 33 =
  36. 36.Digital root of 59 × 26 =
  37. 37.Digital root of 33116 =
  38. 38.Digital root of 54 × 33 =
  39. 39.Digital root of 25005 =
  40. 40.Digital root of 65 × 86 =

Answer key

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

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