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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 948 · 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 2463 =
  2. 2.Digital root of 21 × 68 =
  3. 3.Digital root of 33571 =
  4. 4.Digital root of 31719 =
  5. 5.Digital root of 79070 =
  6. 6.Digital root of 54797 =
  7. 7.Digital root of 46 × 57 =
  8. 8.Digital root of 78430 =
  9. 9.Digital root of 77896 =
  10. 10.Digital root of 61103 =
  11. 11.Digital root of 77984 =
  12. 12.Digital root of 96 × 87 =
  13. 13.Digital root of 77 × 70 =
  14. 14.Digital root of 77 × 97 =
  15. 15.Digital root of 94300 =
  16. 16.Digital root of 29286 =
  17. 17.Digital root of 74542 =
  18. 18.Digital root of 25628 =
  19. 19.Digital root of 842 =
  20. 20.Digital root of 55096 =
  21. 21.Digital root of 69399 =
  22. 22.Digital root of 99 × 89 =
  23. 23.Digital root of 20 × 37 =
  24. 24.Digital root of 59165 =
  25. 25.Digital root of 12062 =
  26. 26.Digital root of 51 × 65 =
  27. 27.Digital root of 2334 =
  28. 28.Digital root of 16 × 94 =
  29. 29.Digital root of 25 × 58 =
  30. 30.Digital root of 23637 =
  31. 31.Digital root of 53 × 93 =
  32. 32.Digital root of 29801 =
  33. 33.Digital root of 29102 =
  34. 34.Digital root of 80638 =
  35. 35.Digital root of 29142 =
  36. 36.Digital root of 60283 =
  37. 37.Digital root of 17179 =
  38. 38.Digital root of 68023 =
  39. 39.Digital root of 53860 =
  40. 40.Digital root of 50 × 35 =

Answer key

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

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