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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 310 · 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 78031 =
  2. 2.Digital root of 23 × 60 =
  3. 3.Digital root of 40 × 84 =
  4. 4.Digital root of 95 × 73 =
  5. 5.Digital root of 59867 =
  6. 6.Digital root of 70 × 17 =
  7. 7.Digital root of 96454 =
  8. 8.Digital root of 21619 =
  9. 9.Digital root of 37 × 75 =
  10. 10.Digital root of 1676 =
  11. 11.Digital root of 16 × 36 =
  12. 12.Digital root of 40375 =
  13. 13.Digital root of 72 × 31 =
  14. 14.Digital root of 20 × 33 =
  15. 15.Digital root of 96 × 44 =
  16. 16.Digital root of 91260 =
  17. 17.Digital root of 663 =
  18. 18.Digital root of 26498 =
  19. 19.Digital root of 87 × 92 =
  20. 20.Digital root of 57388 =
  21. 21.Digital root of 1805 =
  22. 22.Digital root of 77 × 25 =
  23. 23.Digital root of 35 × 83 =
  24. 24.Digital root of 29 × 12 =
  25. 25.Digital root of 67423 =
  26. 26.Digital root of 58 × 53 =
  27. 27.Digital root of 14 × 40 =
  28. 28.Digital root of 48406 =
  29. 29.Digital root of 97 × 98 =
  30. 30.Digital root of 25859 =
  31. 31.Digital root of 42112 =
  32. 32.Digital root of 49 × 38 =
  33. 33.Digital root of 5376 =
  34. 34.Digital root of 9946 =
  35. 35.Digital root of 42 × 81 =
  36. 36.Digital root of 31166 =
  37. 37.Digital root of 13168 =
  38. 38.Digital root of 10621 =
  39. 39.Digital root of 78 × 40 =
  40. 40.Digital root of 29906 =

Answer key

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

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