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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 249 · 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 24762 =
  2. 2.Digital root of 44 × 18 =
  3. 3.Digital root of 46913 =
  4. 4.Digital root of 14 × 67 =
  5. 5.Digital root of 60 × 79 =
  6. 6.Digital root of 92 × 28 =
  7. 7.Digital root of 40026 =
  8. 8.Digital root of 90322 =
  9. 9.Digital root of 64 × 45 =
  10. 10.Digital root of 15 × 98 =
  11. 11.Digital root of 12876 =
  12. 12.Digital root of 52550 =
  13. 13.Digital root of 4972 =
  14. 14.Digital root of 32657 =
  15. 15.Digital root of 96254 =
  16. 16.Digital root of 66160 =
  17. 17.Digital root of 433 =
  18. 18.Digital root of 56621 =
  19. 19.Digital root of 57760 =
  20. 20.Digital root of 16624 =
  21. 21.Digital root of 15 × 89 =
  22. 22.Digital root of 3978 =
  23. 23.Digital root of 82937 =
  24. 24.Digital root of 37219 =
  25. 25.Digital root of 65098 =
  26. 26.Digital root of 22 × 97 =
  27. 27.Digital root of 77378 =
  28. 28.Digital root of 8338 =
  29. 29.Digital root of 88769 =
  30. 30.Digital root of 69 × 80 =
  31. 31.Digital root of 93 × 19 =
  32. 32.Digital root of 11218 =
  33. 33.Digital root of 44114 =
  34. 34.Digital root of 40 × 70 =
  35. 35.Digital root of 16 × 60 =
  36. 36.Digital root of 1254 =
  37. 37.Digital root of 81 × 92 =
  38. 38.Digital root of 81 × 42 =
  39. 39.Digital root of 30661 =
  40. 40.Digital root of 86 × 41 =

Answer key

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

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