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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 498 · 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 40607 =
  2. 2.Digital root of 79 × 60 =
  3. 3.Digital root of 76 × 20 =
  4. 4.Digital root of 83 × 80 =
  5. 5.Digital root of 26 × 21 =
  6. 6.Digital root of 18581 =
  7. 7.Digital root of 6762 =
  8. 8.Digital root of 33 × 82 =
  9. 9.Digital root of 52 × 30 =
  10. 10.Digital root of 33455 =
  11. 11.Digital root of 41007 =
  12. 12.Digital root of 96766 =
  13. 13.Digital root of 65248 =
  14. 14.Digital root of 99562 =
  15. 15.Digital root of 56376 =
  16. 16.Digital root of 65019 =
  17. 17.Digital root of 53 × 51 =
  18. 18.Digital root of 69 × 32 =
  19. 19.Digital root of 34 × 42 =
  20. 20.Digital root of 96570 =
  21. 21.Digital root of 71007 =
  22. 22.Digital root of 94 × 31 =
  23. 23.Digital root of 30 × 12 =
  24. 24.Digital root of 15 × 29 =
  25. 25.Digital root of 53719 =
  26. 26.Digital root of 18606 =
  27. 27.Digital root of 69579 =
  28. 28.Digital root of 58791 =
  29. 29.Digital root of 4595 =
  30. 30.Digital root of 58749 =
  31. 31.Digital root of 98342 =
  32. 32.Digital root of 78108 =
  33. 33.Digital root of 56209 =
  34. 34.Digital root of 2119 =
  35. 35.Digital root of 23261 =
  36. 36.Digital root of 58 × 64 =
  37. 37.Digital root of 75 × 87 =
  38. 38.Digital root of 11548 =
  39. 39.Digital root of 32800 =
  40. 40.Digital root of 6574 =

Answer key

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

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