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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 530 · 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 85 × 62 =
  2. 2.Digital root of 27722 =
  3. 3.Digital root of 31056 =
  4. 4.Digital root of 18 × 95 =
  5. 5.Digital root of 83659 =
  6. 6.Digital root of 94 × 44 =
  7. 7.Digital root of 27 × 92 =
  8. 8.Digital root of 13 × 23 =
  9. 9.Digital root of 33 × 95 =
  10. 10.Digital root of 39716 =
  11. 11.Digital root of 25553 =
  12. 12.Digital root of 24 × 69 =
  13. 13.Digital root of 61 × 28 =
  14. 14.Digital root of 18 × 89 =
  15. 15.Digital root of 91633 =
  16. 16.Digital root of 87774 =
  17. 17.Digital root of 12 × 92 =
  18. 18.Digital root of 89 × 56 =
  19. 19.Digital root of 48 × 38 =
  20. 20.Digital root of 16 × 78 =
  21. 21.Digital root of 71426 =
  22. 22.Digital root of 32551 =
  23. 23.Digital root of 55130 =
  24. 24.Digital root of 58 × 23 =
  25. 25.Digital root of 21272 =
  26. 26.Digital root of 36979 =
  27. 27.Digital root of 52625 =
  28. 28.Digital root of 19599 =
  29. 29.Digital root of 34 × 64 =
  30. 30.Digital root of 38774 =
  31. 31.Digital root of 66588 =
  32. 32.Digital root of 57 × 58 =
  33. 33.Digital root of 35155 =
  34. 34.Digital root of 64 × 14 =
  35. 35.Digital root of 12 × 97 =
  36. 36.Digital root of 17441 =
  37. 37.Digital root of 34838 =
  38. 38.Digital root of 89 × 45 =
  39. 39.Digital root of 95275 =
  40. 40.Digital root of 16004 =

Answer key

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

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