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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 573 · 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 42 × 76 =
  2. 2.Digital root of 89772 =
  3. 3.Digital root of 37930 =
  4. 4.Digital root of 42 × 20 =
  5. 5.Digital root of 61785 =
  6. 6.Digital root of 64 × 48 =
  7. 7.Digital root of 9510 =
  8. 8.Digital root of 27 × 65 =
  9. 9.Digital root of 97622 =
  10. 10.Digital root of 22 × 23 =
  11. 11.Digital root of 63774 =
  12. 12.Digital root of 25 × 99 =
  13. 13.Digital root of 47563 =
  14. 14.Digital root of 78302 =
  15. 15.Digital root of 49565 =
  16. 16.Digital root of 12 × 17 =
  17. 17.Digital root of 45940 =
  18. 18.Digital root of 62741 =
  19. 19.Digital root of 64620 =
  20. 20.Digital root of 13287 =
  21. 21.Digital root of 29431 =
  22. 22.Digital root of 66254 =
  23. 23.Digital root of 23 × 24 =
  24. 24.Digital root of 61 × 54 =
  25. 25.Digital root of 88 × 86 =
  26. 26.Digital root of 58089 =
  27. 27.Digital root of 39 × 32 =
  28. 28.Digital root of 50 × 86 =
  29. 29.Digital root of 27 × 33 =
  30. 30.Digital root of 88976 =
  31. 31.Digital root of 7561 =
  32. 32.Digital root of 83 × 93 =
  33. 33.Digital root of 65 × 24 =
  34. 34.Digital root of 13348 =
  35. 35.Digital root of 88023 =
  36. 36.Digital root of 27 × 44 =
  37. 37.Digital root of 99 × 90 =
  38. 38.Digital root of 33745 =
  39. 39.Digital root of 42 × 65 =
  40. 40.Digital root of 25 × 32 =

Answer key

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

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