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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 24 · 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 32942 =
  2. 2.Digital root of 11469 =
  3. 3.Digital root of 40 × 81 =
  4. 4.Digital root of 45462 =
  5. 5.Digital root of 59775 =
  6. 6.Digital root of 12 × 44 =
  7. 7.Digital root of 16153 =
  8. 8.Digital root of 33 × 46 =
  9. 9.Digital root of 71052 =
  10. 10.Digital root of 39 × 94 =
  11. 11.Digital root of 62764 =
  12. 12.Digital root of 23 × 87 =
  13. 13.Digital root of 32 × 36 =
  14. 14.Digital root of 71 × 20 =
  15. 15.Digital root of 26621 =
  16. 16.Digital root of 98 × 57 =
  17. 17.Digital root of 84412 =
  18. 18.Digital root of 10722 =
  19. 19.Digital root of 96 × 34 =
  20. 20.Digital root of 67788 =
  21. 21.Digital root of 18219 =
  22. 22.Digital root of 87 × 57 =
  23. 23.Digital root of 27004 =
  24. 24.Digital root of 75 × 78 =
  25. 25.Digital root of 73 × 24 =
  26. 26.Digital root of 44 × 64 =
  27. 27.Digital root of 27158 =
  28. 28.Digital root of 76 × 23 =
  29. 29.Digital root of 35 × 84 =
  30. 30.Digital root of 1713 =
  31. 31.Digital root of 21529 =
  32. 32.Digital root of 94 × 38 =
  33. 33.Digital root of 52 × 69 =
  34. 34.Digital root of 13 × 95 =
  35. 35.Digital root of 24 × 28 =
  36. 36.Digital root of 9620 =
  37. 37.Digital root of 19 × 82 =
  38. 38.Digital root of 32 × 98 =
  39. 39.Digital root of 24932 =
  40. 40.Digital root of 14 × 35 =

Answer key

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

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