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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 30 · 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 232 =
  2. 2.Digital root of 44 × 18 =
  3. 3.Digital root of 31 × 60 =
  4. 4.Digital root of 34057 =
  5. 5.Digital root of 58 × 98 =
  6. 6.Digital root of 46411 =
  7. 7.Digital root of 25509 =
  8. 8.Digital root of 27 × 49 =
  9. 9.Digital root of 3941 =
  10. 10.Digital root of 40 × 42 =
  11. 11.Digital root of 65037 =
  12. 12.Digital root of 34 × 16 =
  13. 13.Digital root of 92 × 33 =
  14. 14.Digital root of 17769 =
  15. 15.Digital root of 65520 =
  16. 16.Digital root of 66 × 93 =
  17. 17.Digital root of 11109 =
  18. 18.Digital root of 42 × 19 =
  19. 19.Digital root of 91 × 24 =
  20. 20.Digital root of 75 × 25 =
  21. 21.Digital root of 69 × 16 =
  22. 22.Digital root of 4178 =
  23. 23.Digital root of 72801 =
  24. 24.Digital root of 57466 =
  25. 25.Digital root of 43314 =
  26. 26.Digital root of 97415 =
  27. 27.Digital root of 5535 =
  28. 28.Digital root of 78412 =
  29. 29.Digital root of 53581 =
  30. 30.Digital root of 11237 =
  31. 31.Digital root of 95503 =
  32. 32.Digital root of 37 × 77 =
  33. 33.Digital root of 93 × 31 =
  34. 34.Digital root of 25 × 23 =
  35. 35.Digital root of 73 × 14 =
  36. 36.Digital root of 31730 =
  37. 37.Digital root of 14 × 33 =
  38. 38.Digital root of 17 × 81 =
  39. 39.Digital root of 87 × 74 =
  40. 40.Digital root of 40243 =

Answer key

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

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