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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 737 · 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 32681 =
  2. 2.Digital root of 26986 =
  3. 3.Digital root of 18 × 19 =
  4. 4.Digital root of 41369 =
  5. 5.Digital root of 12548 =
  6. 6.Digital root of 23 × 13 =
  7. 7.Digital root of 92 × 13 =
  8. 8.Digital root of 23852 =
  9. 9.Digital root of 54 × 57 =
  10. 10.Digital root of 55 × 93 =
  11. 11.Digital root of 7793 =
  12. 12.Digital root of 69 × 82 =
  13. 13.Digital root of 22 × 20 =
  14. 14.Digital root of 71795 =
  15. 15.Digital root of 92441 =
  16. 16.Digital root of 6717 =
  17. 17.Digital root of 25 × 93 =
  18. 18.Digital root of 59566 =
  19. 19.Digital root of 16 × 21 =
  20. 20.Digital root of 64 × 72 =
  21. 21.Digital root of 96 × 81 =
  22. 22.Digital root of 45522 =
  23. 23.Digital root of 33503 =
  24. 24.Digital root of 38862 =
  25. 25.Digital root of 39 × 85 =
  26. 26.Digital root of 56040 =
  27. 27.Digital root of 41154 =
  28. 28.Digital root of 31097 =
  29. 29.Digital root of 43419 =
  30. 30.Digital root of 57987 =
  31. 31.Digital root of 56000 =
  32. 32.Digital root of 25268 =
  33. 33.Digital root of 64035 =
  34. 34.Digital root of 54848 =
  35. 35.Digital root of 76603 =
  36. 36.Digital root of 31314 =
  37. 37.Digital root of 72 × 66 =
  38. 38.Digital root of 68 × 76 =
  39. 39.Digital root of 2124 =
  40. 40.Digital root of 21 × 45 =

Answer key

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

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