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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 78 · 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 97775 =
  2. 2.Digital root of 52988 =
  3. 3.Digital root of 9104 =
  4. 4.Digital root of 24 × 56 =
  5. 5.Digital root of 34 × 17 =
  6. 6.Digital root of 61 × 32 =
  7. 7.Digital root of 42484 =
  8. 8.Digital root of 16 × 31 =
  9. 9.Digital root of 88515 =
  10. 10.Digital root of 24489 =
  11. 11.Digital root of 28 × 62 =
  12. 12.Digital root of 90 × 22 =
  13. 13.Digital root of 28 × 48 =
  14. 14.Digital root of 97 × 92 =
  15. 15.Digital root of 20066 =
  16. 16.Digital root of 59420 =
  17. 17.Digital root of 46505 =
  18. 18.Digital root of 59371 =
  19. 19.Digital root of 38482 =
  20. 20.Digital root of 6020 =
  21. 21.Digital root of 69392 =
  22. 22.Digital root of 40378 =
  23. 23.Digital root of 80 × 18 =
  24. 24.Digital root of 84 × 71 =
  25. 25.Digital root of 15551 =
  26. 26.Digital root of 71538 =
  27. 27.Digital root of 18522 =
  28. 28.Digital root of 67074 =
  29. 29.Digital root of 46376 =
  30. 30.Digital root of 67 × 86 =
  31. 31.Digital root of 68 × 37 =
  32. 32.Digital root of 77314 =
  33. 33.Digital root of 93354 =
  34. 34.Digital root of 89424 =
  35. 35.Digital root of 37374 =
  36. 36.Digital root of 41 × 40 =
  37. 37.Digital root of 36283 =
  38. 38.Digital root of 54 × 37 =
  39. 39.Digital root of 96218 =
  40. 40.Digital root of 44 × 26 =

Answer key

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

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