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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 620 · 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 75774 =
  2. 2.Digital root of 26 × 15 =
  3. 3.Digital root of 49 × 93 =
  4. 4.Digital root of 96032 =
  5. 5.Digital root of 71983 =
  6. 6.Digital root of 98 × 93 =
  7. 7.Digital root of 73645 =
  8. 8.Digital root of 65 × 67 =
  9. 9.Digital root of 50 × 51 =
  10. 10.Digital root of 78132 =
  11. 11.Digital root of 56297 =
  12. 12.Digital root of 26 × 68 =
  13. 13.Digital root of 82809 =
  14. 14.Digital root of 7121 =
  15. 15.Digital root of 78794 =
  16. 16.Digital root of 28224 =
  17. 17.Digital root of 26 × 56 =
  18. 18.Digital root of 38 × 17 =
  19. 19.Digital root of 17 × 66 =
  20. 20.Digital root of 77663 =
  21. 21.Digital root of 20 × 30 =
  22. 22.Digital root of 1470 =
  23. 23.Digital root of 70 × 12 =
  24. 24.Digital root of 2426 =
  25. 25.Digital root of 3134 =
  26. 26.Digital root of 44 × 36 =
  27. 27.Digital root of 32734 =
  28. 28.Digital root of 29982 =
  29. 29.Digital root of 42513 =
  30. 30.Digital root of 93 × 52 =
  31. 31.Digital root of 8299 =
  32. 32.Digital root of 14 × 21 =
  33. 33.Digital root of 51333 =
  34. 34.Digital root of 17231 =
  35. 35.Digital root of 92737 =
  36. 36.Digital root of 17 × 84 =
  37. 37.Digital root of 47 × 52 =
  38. 38.Digital root of 86340 =
  39. 39.Digital root of 33553 =
  40. 40.Digital root of 39303 =

Answer key

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

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