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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 268 · 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 78 × 56 =
  2. 2.Digital root of 35925 =
  3. 3.Digital root of 25485 =
  4. 4.Digital root of 63 × 25 =
  5. 5.Digital root of 95 × 28 =
  6. 6.Digital root of 62 × 20 =
  7. 7.Digital root of 71032 =
  8. 8.Digital root of 33370 =
  9. 9.Digital root of 19 × 81 =
  10. 10.Digital root of 34906 =
  11. 11.Digital root of 97 × 72 =
  12. 12.Digital root of 74305 =
  13. 13.Digital root of 56 × 40 =
  14. 14.Digital root of 32121 =
  15. 15.Digital root of 54 × 38 =
  16. 16.Digital root of 15 × 88 =
  17. 17.Digital root of 32 × 49 =
  18. 18.Digital root of 81337 =
  19. 19.Digital root of 62 × 35 =
  20. 20.Digital root of 16 × 30 =
  21. 21.Digital root of 52 × 98 =
  22. 22.Digital root of 40264 =
  23. 23.Digital root of 61295 =
  24. 24.Digital root of 30 × 54 =
  25. 25.Digital root of 91 × 20 =
  26. 26.Digital root of 23978 =
  27. 27.Digital root of 30 × 25 =
  28. 28.Digital root of 41648 =
  29. 29.Digital root of 15 × 42 =
  30. 30.Digital root of 4209 =
  31. 31.Digital root of 43 × 14 =
  32. 32.Digital root of 1145 =
  33. 33.Digital root of 91 × 22 =
  34. 34.Digital root of 72740 =
  35. 35.Digital root of 50 × 69 =
  36. 36.Digital root of 37 × 32 =
  37. 37.Digital root of 2632 =
  38. 38.Digital root of 99744 =
  39. 39.Digital root of 8414 =
  40. 40.Digital root of 63018 =

Answer key

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

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