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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 940 · 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 31336 =
  2. 2.Digital root of 85 × 30 =
  3. 3.Digital root of 14 × 90 =
  4. 4.Digital root of 43035 =
  5. 5.Digital root of 28923 =
  6. 6.Digital root of 20 × 98 =
  7. 7.Digital root of 33 × 21 =
  8. 8.Digital root of 10670 =
  9. 9.Digital root of 95 × 42 =
  10. 10.Digital root of 85181 =
  11. 11.Digital root of 250 =
  12. 12.Digital root of 72806 =
  13. 13.Digital root of 98 × 59 =
  14. 14.Digital root of 91 × 69 =
  15. 15.Digital root of 82 × 89 =
  16. 16.Digital root of 19 × 86 =
  17. 17.Digital root of 28 × 87 =
  18. 18.Digital root of 11095 =
  19. 19.Digital root of 21994 =
  20. 20.Digital root of 93 × 25 =
  21. 21.Digital root of 63 × 67 =
  22. 22.Digital root of 13 × 51 =
  23. 23.Digital root of 30362 =
  24. 24.Digital root of 52814 =
  25. 25.Digital root of 98 × 15 =
  26. 26.Digital root of 23172 =
  27. 27.Digital root of 75231 =
  28. 28.Digital root of 21 × 27 =
  29. 29.Digital root of 33637 =
  30. 30.Digital root of 78276 =
  31. 31.Digital root of 34943 =
  32. 32.Digital root of 25162 =
  33. 33.Digital root of 72 × 40 =
  34. 34.Digital root of 38 × 54 =
  35. 35.Digital root of 25157 =
  36. 36.Digital root of 37672 =
  37. 37.Digital root of 22 × 70 =
  38. 38.Digital root of 76581 =
  39. 39.Digital root of 16253 =
  40. 40.Digital root of 63 × 48 =

Answer key

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

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