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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 941 · 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 31119 =
  2. 2.Digital root of 91 × 22 =
  3. 3.Digital root of 23521 =
  4. 4.Digital root of 24410 =
  5. 5.Digital root of 13 × 55 =
  6. 6.Digital root of 34 × 76 =
  7. 7.Digital root of 76283 =
  8. 8.Digital root of 65271 =
  9. 9.Digital root of 83 × 60 =
  10. 10.Digital root of 95 × 49 =
  11. 11.Digital root of 93 × 37 =
  12. 12.Digital root of 18 × 72 =
  13. 13.Digital root of 98 × 87 =
  14. 14.Digital root of 34801 =
  15. 15.Digital root of 48 × 48 =
  16. 16.Digital root of 46191 =
  17. 17.Digital root of 37 × 12 =
  18. 18.Digital root of 56 × 39 =
  19. 19.Digital root of 85 × 23 =
  20. 20.Digital root of 38677 =
  21. 21.Digital root of 20 × 38 =
  22. 22.Digital root of 55402 =
  23. 23.Digital root of 74446 =
  24. 24.Digital root of 65914 =
  25. 25.Digital root of 78950 =
  26. 26.Digital root of 89386 =
  27. 27.Digital root of 28 × 33 =
  28. 28.Digital root of 6620 =
  29. 29.Digital root of 66915 =
  30. 30.Digital root of 98 × 25 =
  31. 31.Digital root of 77 × 97 =
  32. 32.Digital root of 94760 =
  33. 33.Digital root of 20689 =
  34. 34.Digital root of 55303 =
  35. 35.Digital root of 1606 =
  36. 36.Digital root of 89470 =
  37. 37.Digital root of 33 × 29 =
  38. 38.Digital root of 21515 =
  39. 39.Digital root of 92 × 14 =
  40. 40.Digital root of 78 × 93 =

Answer key

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

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