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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 96 · 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 37 × 40 =
  2. 2.Digital root of 47305 =
  3. 3.Digital root of 14299 =
  4. 4.Digital root of 39 × 21 =
  5. 5.Digital root of 85943 =
  6. 6.Digital root of 14194 =
  7. 7.Digital root of 45171 =
  8. 8.Digital root of 31 × 53 =
  9. 9.Digital root of 33252 =
  10. 10.Digital root of 87 × 39 =
  11. 11.Digital root of 69 × 72 =
  12. 12.Digital root of 55 × 89 =
  13. 13.Digital root of 73 × 89 =
  14. 14.Digital root of 62 × 92 =
  15. 15.Digital root of 53 × 13 =
  16. 16.Digital root of 33462 =
  17. 17.Digital root of 11110 =
  18. 18.Digital root of 62 × 49 =
  19. 19.Digital root of 37860 =
  20. 20.Digital root of 59 × 23 =
  21. 21.Digital root of 75008 =
  22. 22.Digital root of 29 × 21 =
  23. 23.Digital root of 81518 =
  24. 24.Digital root of 84 × 18 =
  25. 25.Digital root of 71 × 33 =
  26. 26.Digital root of 47445 =
  27. 27.Digital root of 53 × 60 =
  28. 28.Digital root of 41141 =
  29. 29.Digital root of 37771 =
  30. 30.Digital root of 60248 =
  31. 31.Digital root of 42 × 24 =
  32. 32.Digital root of 77310 =
  33. 33.Digital root of 73692 =
  34. 34.Digital root of 14678 =
  35. 35.Digital root of 80359 =
  36. 36.Digital root of 98 × 79 =
  37. 37.Digital root of 12 × 83 =
  38. 38.Digital root of 80192 =
  39. 39.Digital root of 32 × 70 =
  40. 40.Digital root of 41757 =

Answer key

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

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