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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 278 · 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 24221 =
  2. 2.Digital root of 45953 =
  3. 3.Digital root of 60 × 50 =
  4. 4.Digital root of 13 × 52 =
  5. 5.Digital root of 14707 =
  6. 6.Digital root of 12767 =
  7. 7.Digital root of 15685 =
  8. 8.Digital root of 41 × 91 =
  9. 9.Digital root of 3080 =
  10. 10.Digital root of 40 × 39 =
  11. 11.Digital root of 35437 =
  12. 12.Digital root of 22517 =
  13. 13.Digital root of 27183 =
  14. 14.Digital root of 28243 =
  15. 15.Digital root of 41136 =
  16. 16.Digital root of 27999 =
  17. 17.Digital root of 53117 =
  18. 18.Digital root of 22288 =
  19. 19.Digital root of 13812 =
  20. 20.Digital root of 89097 =
  21. 21.Digital root of 19 × 33 =
  22. 22.Digital root of 90676 =
  23. 23.Digital root of 55002 =
  24. 24.Digital root of 15145 =
  25. 25.Digital root of 72365 =
  26. 26.Digital root of 47323 =
  27. 27.Digital root of 7600 =
  28. 28.Digital root of 28 × 74 =
  29. 29.Digital root of 76 × 47 =
  30. 30.Digital root of 1198 =
  31. 31.Digital root of 85612 =
  32. 32.Digital root of 22 × 80 =
  33. 33.Digital root of 84133 =
  34. 34.Digital root of 25 × 64 =
  35. 35.Digital root of 88100 =
  36. 36.Digital root of 80 × 26 =
  37. 37.Digital root of 18 × 89 =
  38. 38.Digital root of 608 =
  39. 39.Digital root of 75 × 67 =
  40. 40.Digital root of 28194 =

Answer key

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

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