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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 338 · 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 5568 =
  2. 2.Digital root of 19 × 31 =
  3. 3.Digital root of 82 × 46 =
  4. 4.Digital root of 34 × 13 =
  5. 5.Digital root of 57 × 61 =
  6. 6.Digital root of 34113 =
  7. 7.Digital root of 6626 =
  8. 8.Digital root of 83911 =
  9. 9.Digital root of 19 × 44 =
  10. 10.Digital root of 59 × 85 =
  11. 11.Digital root of 66657 =
  12. 12.Digital root of 45 × 20 =
  13. 13.Digital root of 23 × 55 =
  14. 14.Digital root of 14501 =
  15. 15.Digital root of 17230 =
  16. 16.Digital root of 42245 =
  17. 17.Digital root of 12 × 20 =
  18. 18.Digital root of 16 × 95 =
  19. 19.Digital root of 83366 =
  20. 20.Digital root of 51871 =
  21. 21.Digital root of 43 × 95 =
  22. 22.Digital root of 6704 =
  23. 23.Digital root of 8318 =
  24. 24.Digital root of 12 × 42 =
  25. 25.Digital root of 87460 =
  26. 26.Digital root of 1589 =
  27. 27.Digital root of 57369 =
  28. 28.Digital root of 17 × 20 =
  29. 29.Digital root of 93 × 86 =
  30. 30.Digital root of 67107 =
  31. 31.Digital root of 95 × 33 =
  32. 32.Digital root of 76795 =
  33. 33.Digital root of 64470 =
  34. 34.Digital root of 24180 =
  35. 35.Digital root of 88 × 30 =
  36. 36.Digital root of 77 × 12 =
  37. 37.Digital root of 23 × 74 =
  38. 38.Digital root of 54783 =
  39. 39.Digital root of 93321 =
  40. 40.Digital root of 19193 =

Answer key

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

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