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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 651 · 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 13711 =
  2. 2.Digital root of 79498 =
  3. 3.Digital root of 50 × 37 =
  4. 4.Digital root of 54676 =
  5. 5.Digital root of 18 × 23 =
  6. 6.Digital root of 37 × 38 =
  7. 7.Digital root of 76969 =
  8. 8.Digital root of 62441 =
  9. 9.Digital root of 12 × 36 =
  10. 10.Digital root of 96616 =
  11. 11.Digital root of 61 × 93 =
  12. 12.Digital root of 71 × 18 =
  13. 13.Digital root of 65 × 25 =
  14. 14.Digital root of 35 × 45 =
  15. 15.Digital root of 6752 =
  16. 16.Digital root of 34 × 25 =
  17. 17.Digital root of 23065 =
  18. 18.Digital root of 84848 =
  19. 19.Digital root of 26148 =
  20. 20.Digital root of 66 × 87 =
  21. 21.Digital root of 86 × 22 =
  22. 22.Digital root of 49 × 99 =
  23. 23.Digital root of 92 × 28 =
  24. 24.Digital root of 4521 =
  25. 25.Digital root of 4052 =
  26. 26.Digital root of 89391 =
  27. 27.Digital root of 52397 =
  28. 28.Digital root of 22198 =
  29. 29.Digital root of 50487 =
  30. 30.Digital root of 1132 =
  31. 31.Digital root of 56 × 35 =
  32. 32.Digital root of 87 × 87 =
  33. 33.Digital root of 36579 =
  34. 34.Digital root of 88247 =
  35. 35.Digital root of 32139 =
  36. 36.Digital root of 13 × 75 =
  37. 37.Digital root of 79760 =
  38. 38.Digital root of 64284 =
  39. 39.Digital root of 23 × 55 =
  40. 40.Digital root of 56631 =

Answer key

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

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