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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 376 · 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 4343 =
  2. 2.Digital root of 58413 =
  3. 3.Digital root of 41 × 62 =
  4. 4.Digital root of 42 × 64 =
  5. 5.Digital root of 85666 =
  6. 6.Digital root of 124 =
  7. 7.Digital root of 97715 =
  8. 8.Digital root of 21864 =
  9. 9.Digital root of 67107 =
  10. 10.Digital root of 15680 =
  11. 11.Digital root of 44 × 28 =
  12. 12.Digital root of 22 × 37 =
  13. 13.Digital root of 14654 =
  14. 14.Digital root of 87 × 74 =
  15. 15.Digital root of 58 × 56 =
  16. 16.Digital root of 12 × 38 =
  17. 17.Digital root of 11418 =
  18. 18.Digital root of 48 × 37 =
  19. 19.Digital root of 11767 =
  20. 20.Digital root of 68470 =
  21. 21.Digital root of 89540 =
  22. 22.Digital root of 89 × 78 =
  23. 23.Digital root of 44 × 14 =
  24. 24.Digital root of 72 × 22 =
  25. 25.Digital root of 60 × 64 =
  26. 26.Digital root of 32 × 95 =
  27. 27.Digital root of 43 × 39 =
  28. 28.Digital root of 22 × 38 =
  29. 29.Digital root of 27 × 84 =
  30. 30.Digital root of 51761 =
  31. 31.Digital root of 35600 =
  32. 32.Digital root of 24 × 32 =
  33. 33.Digital root of 92 × 44 =
  34. 34.Digital root of 42726 =
  35. 35.Digital root of 64 × 60 =
  36. 36.Digital root of 97555 =
  37. 37.Digital root of 34 × 54 =
  38. 38.Digital root of 44950 =
  39. 39.Digital root of 38982 =
  40. 40.Digital root of 95342 =

Answer key

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

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