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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 193 · 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 52654 =
  2. 2.Digital root of 99481 =
  3. 3.Digital root of 84 × 36 =
  4. 4.Digital root of 79 × 87 =
  5. 5.Digital root of 94 × 29 =
  6. 6.Digital root of 48 × 46 =
  7. 7.Digital root of 44584 =
  8. 8.Digital root of 6456 =
  9. 9.Digital root of 40434 =
  10. 10.Digital root of 3549 =
  11. 11.Digital root of 10787 =
  12. 12.Digital root of 62 × 26 =
  13. 13.Digital root of 21 × 39 =
  14. 14.Digital root of 61455 =
  15. 15.Digital root of 41 × 19 =
  16. 16.Digital root of 13 × 74 =
  17. 17.Digital root of 8053 =
  18. 18.Digital root of 4014 =
  19. 19.Digital root of 73 × 25 =
  20. 20.Digital root of 58885 =
  21. 21.Digital root of 34711 =
  22. 22.Digital root of 48920 =
  23. 23.Digital root of 68135 =
  24. 24.Digital root of 52886 =
  25. 25.Digital root of 30905 =
  26. 26.Digital root of 57 × 32 =
  27. 27.Digital root of 17 × 49 =
  28. 28.Digital root of 86775 =
  29. 29.Digital root of 42080 =
  30. 30.Digital root of 52966 =
  31. 31.Digital root of 70 × 18 =
  32. 32.Digital root of 99471 =
  33. 33.Digital root of 25 × 89 =
  34. 34.Digital root of 80070 =
  35. 35.Digital root of 44 × 98 =
  36. 36.Digital root of 10217 =
  37. 37.Digital root of 72 × 31 =
  38. 38.Digital root of 92 × 12 =
  39. 39.Digital root of 95 × 58 =
  40. 40.Digital root of 47 × 65 =

Answer key

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

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