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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 89 · 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 19096 =
  2. 2.Digital root of 14392 =
  3. 3.Digital root of 3998 =
  4. 4.Digital root of 54972 =
  5. 5.Digital root of 53 × 74 =
  6. 6.Digital root of 16511 =
  7. 7.Digital root of 59 × 41 =
  8. 8.Digital root of 38089 =
  9. 9.Digital root of 82332 =
  10. 10.Digital root of 36 × 31 =
  11. 11.Digital root of 59 × 41 =
  12. 12.Digital root of 31 × 63 =
  13. 13.Digital root of 26 × 20 =
  14. 14.Digital root of 77 × 79 =
  15. 15.Digital root of 61 × 35 =
  16. 16.Digital root of 36413 =
  17. 17.Digital root of 39927 =
  18. 18.Digital root of 54 × 67 =
  19. 19.Digital root of 57501 =
  20. 20.Digital root of 70 × 29 =
  21. 21.Digital root of 23095 =
  22. 22.Digital root of 75 × 88 =
  23. 23.Digital root of 87 × 29 =
  24. 24.Digital root of 29 × 35 =
  25. 25.Digital root of 96 × 16 =
  26. 26.Digital root of 43669 =
  27. 27.Digital root of 1173 =
  28. 28.Digital root of 73913 =
  29. 29.Digital root of 73403 =
  30. 30.Digital root of 36334 =
  31. 31.Digital root of 66 × 55 =
  32. 32.Digital root of 3286 =
  33. 33.Digital root of 86840 =
  34. 34.Digital root of 87 × 41 =
  35. 35.Digital root of 80790 =
  36. 36.Digital root of 13 × 71 =
  37. 37.Digital root of 10169 =
  38. 38.Digital root of 34 × 63 =
  39. 39.Digital root of 58 × 34 =
  40. 40.Digital root of 18 × 62 =

Answer key

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

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