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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 189 · 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 99 × 96 =
  2. 2.Digital root of 83544 =
  3. 3.Digital root of 49880 =
  4. 4.Digital root of 97 × 42 =
  5. 5.Digital root of 50 × 53 =
  6. 6.Digital root of 54746 =
  7. 7.Digital root of 48015 =
  8. 8.Digital root of 1931 =
  9. 9.Digital root of 29 × 37 =
  10. 10.Digital root of 85 × 92 =
  11. 11.Digital root of 20 × 52 =
  12. 12.Digital root of 79303 =
  13. 13.Digital root of 12410 =
  14. 14.Digital root of 92741 =
  15. 15.Digital root of 7025 =
  16. 16.Digital root of 47960 =
  17. 17.Digital root of 24 × 44 =
  18. 18.Digital root of 32436 =
  19. 19.Digital root of 62165 =
  20. 20.Digital root of 26 × 78 =
  21. 21.Digital root of 89975 =
  22. 22.Digital root of 12951 =
  23. 23.Digital root of 35658 =
  24. 24.Digital root of 20754 =
  25. 25.Digital root of 90040 =
  26. 26.Digital root of 5745 =
  27. 27.Digital root of 58 × 19 =
  28. 28.Digital root of 95733 =
  29. 29.Digital root of 71727 =
  30. 30.Digital root of 96 × 68 =
  31. 31.Digital root of 59184 =
  32. 32.Digital root of 49 × 95 =
  33. 33.Digital root of 68 × 60 =
  34. 34.Digital root of 36477 =
  35. 35.Digital root of 18665 =
  36. 36.Digital root of 34 × 45 =
  37. 37.Digital root of 69435 =
  38. 38.Digital root of 70 × 45 =
  39. 39.Digital root of 70407 =
  40. 40.Digital root of 65668 =

Answer key

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

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