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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 572 · 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 23898 =
  2. 2.Digital root of 68 × 92 =
  3. 3.Digital root of 39634 =
  4. 4.Digital root of 79074 =
  5. 5.Digital root of 91612 =
  6. 6.Digital root of 20856 =
  7. 7.Digital root of 93614 =
  8. 8.Digital root of 8253 =
  9. 9.Digital root of 53 × 41 =
  10. 10.Digital root of 92117 =
  11. 11.Digital root of 5242 =
  12. 12.Digital root of 58032 =
  13. 13.Digital root of 1724 =
  14. 14.Digital root of 13677 =
  15. 15.Digital root of 40 × 22 =
  16. 16.Digital root of 37 × 90 =
  17. 17.Digital root of 19333 =
  18. 18.Digital root of 33301 =
  19. 19.Digital root of 96803 =
  20. 20.Digital root of 68 × 30 =
  21. 21.Digital root of 64455 =
  22. 22.Digital root of 42 × 70 =
  23. 23.Digital root of 42 × 99 =
  24. 24.Digital root of 86 × 17 =
  25. 25.Digital root of 54701 =
  26. 26.Digital root of 91 × 92 =
  27. 27.Digital root of 22 × 20 =
  28. 28.Digital root of 59966 =
  29. 29.Digital root of 18 × 12 =
  30. 30.Digital root of 63018 =
  31. 31.Digital root of 60451 =
  32. 32.Digital root of 86 × 90 =
  33. 33.Digital root of 90360 =
  34. 34.Digital root of 39 × 79 =
  35. 35.Digital root of 93 × 26 =
  36. 36.Digital root of 23 × 57 =
  37. 37.Digital root of 60788 =
  38. 38.Digital root of 93790 =
  39. 39.Digital root of 27 × 96 =
  40. 40.Digital root of 77108 =

Answer key

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

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