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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 562 · 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 29 × 89 =
  2. 2.Digital root of 74815 =
  3. 3.Digital root of 73 × 36 =
  4. 4.Digital root of 80282 =
  5. 5.Digital root of 46074 =
  6. 6.Digital root of 34092 =
  7. 7.Digital root of 72517 =
  8. 8.Digital root of 77035 =
  9. 9.Digital root of 33849 =
  10. 10.Digital root of 29 × 21 =
  11. 11.Digital root of 96432 =
  12. 12.Digital root of 93102 =
  13. 13.Digital root of 85103 =
  14. 14.Digital root of 53 × 99 =
  15. 15.Digital root of 43628 =
  16. 16.Digital root of 51288 =
  17. 17.Digital root of 16 × 26 =
  18. 18.Digital root of 62878 =
  19. 19.Digital root of 63654 =
  20. 20.Digital root of 74 × 16 =
  21. 21.Digital root of 27 × 15 =
  22. 22.Digital root of 33 × 21 =
  23. 23.Digital root of 23506 =
  24. 24.Digital root of 41128 =
  25. 25.Digital root of 36 × 49 =
  26. 26.Digital root of 82908 =
  27. 27.Digital root of 87848 =
  28. 28.Digital root of 19 × 21 =
  29. 29.Digital root of 57771 =
  30. 30.Digital root of 99480 =
  31. 31.Digital root of 93 × 19 =
  32. 32.Digital root of 5732 =
  33. 33.Digital root of 36657 =
  34. 34.Digital root of 84032 =
  35. 35.Digital root of 30 × 52 =
  36. 36.Digital root of 86675 =
  37. 37.Digital root of 92 × 52 =
  38. 38.Digital root of 1011 =
  39. 39.Digital root of 70 × 59 =
  40. 40.Digital root of 71383 =

Answer key

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

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