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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 107 · 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 10934 =
  2. 2.Digital root of 98 × 53 =
  3. 3.Digital root of 44466 =
  4. 4.Digital root of 47 × 69 =
  5. 5.Digital root of 69414 =
  6. 6.Digital root of 67 × 84 =
  7. 7.Digital root of 54 × 12 =
  8. 8.Digital root of 29658 =
  9. 9.Digital root of 28542 =
  10. 10.Digital root of 57937 =
  11. 11.Digital root of 4050 =
  12. 12.Digital root of 30 × 22 =
  13. 13.Digital root of 52230 =
  14. 14.Digital root of 75599 =
  15. 15.Digital root of 68 × 39 =
  16. 16.Digital root of 61 × 20 =
  17. 17.Digital root of 38 × 21 =
  18. 18.Digital root of 6174 =
  19. 19.Digital root of 65 × 76 =
  20. 20.Digital root of 86658 =
  21. 21.Digital root of 86852 =
  22. 22.Digital root of 84326 =
  23. 23.Digital root of 77 × 13 =
  24. 24.Digital root of 20 × 88 =
  25. 25.Digital root of 80176 =
  26. 26.Digital root of 54791 =
  27. 27.Digital root of 48425 =
  28. 28.Digital root of 93385 =
  29. 29.Digital root of 70615 =
  30. 30.Digital root of 31 × 30 =
  31. 31.Digital root of 6322 =
  32. 32.Digital root of 57508 =
  33. 33.Digital root of 44947 =
  34. 34.Digital root of 5572 =
  35. 35.Digital root of 74224 =
  36. 36.Digital root of 20 × 66 =
  37. 37.Digital root of 18906 =
  38. 38.Digital root of 46211 =
  39. 39.Digital root of 65240 =
  40. 40.Digital root of 73420 =

Answer key

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

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