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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 259 · 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 26107 =
  2. 2.Digital root of 75068 =
  3. 3.Digital root of 6434 =
  4. 4.Digital root of 81799 =
  5. 5.Digital root of 3222 =
  6. 6.Digital root of 29 × 48 =
  7. 7.Digital root of 50825 =
  8. 8.Digital root of 76 × 90 =
  9. 9.Digital root of 23 × 31 =
  10. 10.Digital root of 34 × 54 =
  11. 11.Digital root of 5138 =
  12. 12.Digital root of 15034 =
  13. 13.Digital root of 16 × 32 =
  14. 14.Digital root of 84 × 93 =
  15. 15.Digital root of 4455 =
  16. 16.Digital root of 93962 =
  17. 17.Digital root of 5587 =
  18. 18.Digital root of 95 × 69 =
  19. 19.Digital root of 81207 =
  20. 20.Digital root of 44 × 92 =
  21. 21.Digital root of 46995 =
  22. 22.Digital root of 53 × 57 =
  23. 23.Digital root of 91847 =
  24. 24.Digital root of 27 × 13 =
  25. 25.Digital root of 22 × 34 =
  26. 26.Digital root of 63971 =
  27. 27.Digital root of 63487 =
  28. 28.Digital root of 19342 =
  29. 29.Digital root of 53461 =
  30. 30.Digital root of 45 × 94 =
  31. 31.Digital root of 12707 =
  32. 32.Digital root of 54719 =
  33. 33.Digital root of 39 × 98 =
  34. 34.Digital root of 16 × 33 =
  35. 35.Digital root of 12 × 51 =
  36. 36.Digital root of 99929 =
  37. 37.Digital root of 92 × 97 =
  38. 38.Digital root of 49380 =
  39. 39.Digital root of 86 × 35 =
  40. 40.Digital root of 47 × 14 =

Answer key

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

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