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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 814 · 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 45588 =
  2. 2.Digital root of 17051 =
  3. 3.Digital root of 52 × 69 =
  4. 4.Digital root of 23276 =
  5. 5.Digital root of 25 × 34 =
  6. 6.Digital root of 75 × 70 =
  7. 7.Digital root of 45526 =
  8. 8.Digital root of 77 × 94 =
  9. 9.Digital root of 71 × 88 =
  10. 10.Digital root of 31682 =
  11. 11.Digital root of 5617 =
  12. 12.Digital root of 47 × 21 =
  13. 13.Digital root of 56710 =
  14. 14.Digital root of 19144 =
  15. 15.Digital root of 47934 =
  16. 16.Digital root of 66 × 40 =
  17. 17.Digital root of 18 × 60 =
  18. 18.Digital root of 70524 =
  19. 19.Digital root of 67868 =
  20. 20.Digital root of 26 × 21 =
  21. 21.Digital root of 99996 =
  22. 22.Digital root of 78990 =
  23. 23.Digital root of 27260 =
  24. 24.Digital root of 67 × 38 =
  25. 25.Digital root of 18 × 14 =
  26. 26.Digital root of 94 × 51 =
  27. 27.Digital root of 60 × 61 =
  28. 28.Digital root of 12 × 65 =
  29. 29.Digital root of 77495 =
  30. 30.Digital root of 48111 =
  31. 31.Digital root of 33 × 41 =
  32. 32.Digital root of 47159 =
  33. 33.Digital root of 55372 =
  34. 34.Digital root of 99622 =
  35. 35.Digital root of 3142 =
  36. 36.Digital root of 72 × 55 =
  37. 37.Digital root of 54972 =
  38. 38.Digital root of 42 × 69 =
  39. 39.Digital root of 75 × 82 =
  40. 40.Digital root of 46328 =

Answer key

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

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