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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 357 · 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 35 × 61 =
  2. 2.Digital root of 99083 =
  3. 3.Digital root of 12419 =
  4. 4.Digital root of 26 × 27 =
  5. 5.Digital root of 91 × 15 =
  6. 6.Digital root of 44771 =
  7. 7.Digital root of 11753 =
  8. 8.Digital root of 99 × 58 =
  9. 9.Digital root of 42218 =
  10. 10.Digital root of 11517 =
  11. 11.Digital root of 67 × 26 =
  12. 12.Digital root of 39 × 67 =
  13. 13.Digital root of 29 × 17 =
  14. 14.Digital root of 21 × 89 =
  15. 15.Digital root of 45352 =
  16. 16.Digital root of 1469 =
  17. 17.Digital root of 36 × 91 =
  18. 18.Digital root of 74 × 23 =
  19. 19.Digital root of 82663 =
  20. 20.Digital root of 10088 =
  21. 21.Digital root of 93 × 88 =
  22. 22.Digital root of 20 × 83 =
  23. 23.Digital root of 77 × 16 =
  24. 24.Digital root of 74 × 66 =
  25. 25.Digital root of 51749 =
  26. 26.Digital root of 68 × 34 =
  27. 27.Digital root of 13650 =
  28. 28.Digital root of 30764 =
  29. 29.Digital root of 75593 =
  30. 30.Digital root of 72 × 31 =
  31. 31.Digital root of 29750 =
  32. 32.Digital root of 21047 =
  33. 33.Digital root of 43 × 36 =
  34. 34.Digital root of 30852 =
  35. 35.Digital root of 10191 =
  36. 36.Digital root of 49 × 56 =
  37. 37.Digital root of 95 × 98 =
  38. 38.Digital root of 42 × 15 =
  39. 39.Digital root of 32 × 66 =
  40. 40.Digital root of 97034 =

Answer key

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

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