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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 219 · 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 49287 =
  2. 2.Digital root of 190 =
  3. 3.Digital root of 31 × 70 =
  4. 4.Digital root of 27 × 78 =
  5. 5.Digital root of 592 =
  6. 6.Digital root of 15 × 15 =
  7. 7.Digital root of 49051 =
  8. 8.Digital root of 66 × 26 =
  9. 9.Digital root of 31196 =
  10. 10.Digital root of 96451 =
  11. 11.Digital root of 14 × 86 =
  12. 12.Digital root of 58 × 28 =
  13. 13.Digital root of 79 × 44 =
  14. 14.Digital root of 15457 =
  15. 15.Digital root of 79 × 91 =
  16. 16.Digital root of 40 × 69 =
  17. 17.Digital root of 35 × 14 =
  18. 18.Digital root of 31 × 87 =
  19. 19.Digital root of 94 × 89 =
  20. 20.Digital root of 86 × 60 =
  21. 21.Digital root of 88 × 85 =
  22. 22.Digital root of 13 × 52 =
  23. 23.Digital root of 38040 =
  24. 24.Digital root of 42227 =
  25. 25.Digital root of 88919 =
  26. 26.Digital root of 30 × 83 =
  27. 27.Digital root of 63 × 76 =
  28. 28.Digital root of 32 × 45 =
  29. 29.Digital root of 39745 =
  30. 30.Digital root of 20 × 57 =
  31. 31.Digital root of 37033 =
  32. 32.Digital root of 58766 =
  33. 33.Digital root of 8712 =
  34. 34.Digital root of 12 × 71 =
  35. 35.Digital root of 31 × 42 =
  36. 36.Digital root of 86882 =
  37. 37.Digital root of 23781 =
  38. 38.Digital root of 20 × 58 =
  39. 39.Digital root of 21303 =
  40. 40.Digital root of 49 × 15 =

Answer key

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

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