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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 584 · 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 50 × 28 =
  2. 2.Digital root of 14918 =
  3. 3.Digital root of 75 × 40 =
  4. 4.Digital root of 52320 =
  5. 5.Digital root of 16 × 15 =
  6. 6.Digital root of 173 =
  7. 7.Digital root of 2816 =
  8. 8.Digital root of 83637 =
  9. 9.Digital root of 24875 =
  10. 10.Digital root of 50 × 98 =
  11. 11.Digital root of 18 × 25 =
  12. 12.Digital root of 2287 =
  13. 13.Digital root of 66589 =
  14. 14.Digital root of 32 × 31 =
  15. 15.Digital root of 56 × 49 =
  16. 16.Digital root of 85 × 73 =
  17. 17.Digital root of 77745 =
  18. 18.Digital root of 62958 =
  19. 19.Digital root of 94874 =
  20. 20.Digital root of 14 × 82 =
  21. 21.Digital root of 70940 =
  22. 22.Digital root of 97 × 60 =
  23. 23.Digital root of 104 =
  24. 24.Digital root of 1118 =
  25. 25.Digital root of 23934 =
  26. 26.Digital root of 58235 =
  27. 27.Digital root of 41 × 53 =
  28. 28.Digital root of 79 × 54 =
  29. 29.Digital root of 48 × 23 =
  30. 30.Digital root of 25625 =
  31. 31.Digital root of 34 × 83 =
  32. 32.Digital root of 26737 =
  33. 33.Digital root of 56 × 22 =
  34. 34.Digital root of 66 × 87 =
  35. 35.Digital root of 60 × 28 =
  36. 36.Digital root of 69 × 52 =
  37. 37.Digital root of 60 × 13 =
  38. 38.Digital root of 26960 =
  39. 39.Digital root of 47940 =
  40. 40.Digital root of 16 × 44 =

Answer key

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

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