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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 925 · 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 31962 =
  2. 2.Digital root of 610 =
  3. 3.Digital root of 10271 =
  4. 4.Digital root of 76 × 20 =
  5. 5.Digital root of 71635 =
  6. 6.Digital root of 63 × 26 =
  7. 7.Digital root of 29318 =
  8. 8.Digital root of 15 × 54 =
  9. 9.Digital root of 73169 =
  10. 10.Digital root of 48 × 47 =
  11. 11.Digital root of 13 × 73 =
  12. 12.Digital root of 49 × 14 =
  13. 13.Digital root of 99653 =
  14. 14.Digital root of 53450 =
  15. 15.Digital root of 90 × 47 =
  16. 16.Digital root of 14 × 16 =
  17. 17.Digital root of 32 × 42 =
  18. 18.Digital root of 78098 =
  19. 19.Digital root of 55979 =
  20. 20.Digital root of 26132 =
  21. 21.Digital root of 58 × 89 =
  22. 22.Digital root of 44346 =
  23. 23.Digital root of 95351 =
  24. 24.Digital root of 69 × 82 =
  25. 25.Digital root of 94 × 56 =
  26. 26.Digital root of 24 × 19 =
  27. 27.Digital root of 5232 =
  28. 28.Digital root of 34465 =
  29. 29.Digital root of 14 × 21 =
  30. 30.Digital root of 24 × 62 =
  31. 31.Digital root of 87 × 39 =
  32. 32.Digital root of 69 × 29 =
  33. 33.Digital root of 52 × 55 =
  34. 34.Digital root of 20 × 80 =
  35. 35.Digital root of 26 × 49 =
  36. 36.Digital root of 77 × 43 =
  37. 37.Digital root of 67 × 15 =
  38. 38.Digital root of 9799 =
  39. 39.Digital root of 28 × 13 =
  40. 40.Digital root of 42159 =

Answer key

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

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