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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 393 · 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 8682 =
  2. 2.Digital root of 75 × 98 =
  3. 3.Digital root of 57522 =
  4. 4.Digital root of 58907 =
  5. 5.Digital root of 4580 =
  6. 6.Digital root of 26 × 72 =
  7. 7.Digital root of 47 × 12 =
  8. 8.Digital root of 52203 =
  9. 9.Digital root of 66259 =
  10. 10.Digital root of 22 × 27 =
  11. 11.Digital root of 69360 =
  12. 12.Digital root of 81 × 52 =
  13. 13.Digital root of 21 × 76 =
  14. 14.Digital root of 45 × 57 =
  15. 15.Digital root of 918 =
  16. 16.Digital root of 12 × 67 =
  17. 17.Digital root of 86559 =
  18. 18.Digital root of 26835 =
  19. 19.Digital root of 28 × 44 =
  20. 20.Digital root of 8520 =
  21. 21.Digital root of 73 × 69 =
  22. 22.Digital root of 72 × 24 =
  23. 23.Digital root of 112 =
  24. 24.Digital root of 13955 =
  25. 25.Digital root of 65450 =
  26. 26.Digital root of 74174 =
  27. 27.Digital root of 72 × 18 =
  28. 28.Digital root of 22545 =
  29. 29.Digital root of 61095 =
  30. 30.Digital root of 53 × 22 =
  31. 31.Digital root of 97951 =
  32. 32.Digital root of 65 × 82 =
  33. 33.Digital root of 20 × 74 =
  34. 34.Digital root of 41 × 38 =
  35. 35.Digital root of 15 × 14 =
  36. 36.Digital root of 24 × 70 =
  37. 37.Digital root of 59315 =
  38. 38.Digital root of 23 × 53 =
  39. 39.Digital root of 39240 =
  40. 40.Digital root of 23 × 70 =

Answer key

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

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