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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 423 · 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 6268 =
  2. 2.Digital root of 42 × 19 =
  3. 3.Digital root of 37 × 39 =
  4. 4.Digital root of 25 × 59 =
  5. 5.Digital root of 43759 =
  6. 6.Digital root of 76 × 21 =
  7. 7.Digital root of 37 × 73 =
  8. 8.Digital root of 49996 =
  9. 9.Digital root of 63049 =
  10. 10.Digital root of 7875 =
  11. 11.Digital root of 28 × 42 =
  12. 12.Digital root of 41265 =
  13. 13.Digital root of 30 × 77 =
  14. 14.Digital root of 41 × 26 =
  15. 15.Digital root of 89525 =
  16. 16.Digital root of 44917 =
  17. 17.Digital root of 67 × 16 =
  18. 18.Digital root of 10961 =
  19. 19.Digital root of 74 × 81 =
  20. 20.Digital root of 41157 =
  21. 21.Digital root of 35 × 58 =
  22. 22.Digital root of 32844 =
  23. 23.Digital root of 70687 =
  24. 24.Digital root of 16 × 82 =
  25. 25.Digital root of 27976 =
  26. 26.Digital root of 77495 =
  27. 27.Digital root of 76054 =
  28. 28.Digital root of 19 × 29 =
  29. 29.Digital root of 88 × 37 =
  30. 30.Digital root of 90 × 54 =
  31. 31.Digital root of 95 × 85 =
  32. 32.Digital root of 73 × 60 =
  33. 33.Digital root of 66247 =
  34. 34.Digital root of 40 × 32 =
  35. 35.Digital root of 14312 =
  36. 36.Digital root of 44315 =
  37. 37.Digital root of 10144 =
  38. 38.Digital root of 68 × 17 =
  39. 39.Digital root of 50033 =
  40. 40.Digital root of 77523 =

Answer key

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

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