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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 844 · 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 48 × 72 =
  2. 2.Digital root of 98 × 12 =
  3. 3.Digital root of 67 × 29 =
  4. 4.Digital root of 22 × 60 =
  5. 5.Digital root of 56 × 30 =
  6. 6.Digital root of 32235 =
  7. 7.Digital root of 24465 =
  8. 8.Digital root of 39 × 92 =
  9. 9.Digital root of 97554 =
  10. 10.Digital root of 92557 =
  11. 11.Digital root of 27 × 26 =
  12. 12.Digital root of 43 × 22 =
  13. 13.Digital root of 86 × 23 =
  14. 14.Digital root of 32 × 70 =
  15. 15.Digital root of 26678 =
  16. 16.Digital root of 12944 =
  17. 17.Digital root of 67925 =
  18. 18.Digital root of 73126 =
  19. 19.Digital root of 78898 =
  20. 20.Digital root of 80 × 25 =
  21. 21.Digital root of 70457 =
  22. 22.Digital root of 33 × 21 =
  23. 23.Digital root of 91486 =
  24. 24.Digital root of 28 × 44 =
  25. 25.Digital root of 45 × 43 =
  26. 26.Digital root of 71 × 40 =
  27. 27.Digital root of 50 × 71 =
  28. 28.Digital root of 75 × 86 =
  29. 29.Digital root of 27 × 99 =
  30. 30.Digital root of 21312 =
  31. 31.Digital root of 71 × 38 =
  32. 32.Digital root of 4135 =
  33. 33.Digital root of 1164 =
  34. 34.Digital root of 33 × 71 =
  35. 35.Digital root of 92 × 24 =
  36. 36.Digital root of 32 × 82 =
  37. 37.Digital root of 29762 =
  38. 38.Digital root of 5529 =
  39. 39.Digital root of 11336 =
  40. 40.Digital root of 29712 =

Answer key

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

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