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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 549 · 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 44703 =
  2. 2.Digital root of 17 × 76 =
  3. 3.Digital root of 51 × 12 =
  4. 4.Digital root of 72115 =
  5. 5.Digital root of 6212 =
  6. 6.Digital root of 54413 =
  7. 7.Digital root of 95627 =
  8. 8.Digital root of 17 × 65 =
  9. 9.Digital root of 18947 =
  10. 10.Digital root of 58014 =
  11. 11.Digital root of 4324 =
  12. 12.Digital root of 75405 =
  13. 13.Digital root of 73 × 20 =
  14. 14.Digital root of 70 × 41 =
  15. 15.Digital root of 32162 =
  16. 16.Digital root of 71 × 17 =
  17. 17.Digital root of 32301 =
  18. 18.Digital root of 49567 =
  19. 19.Digital root of 66 × 35 =
  20. 20.Digital root of 32 × 65 =
  21. 21.Digital root of 45804 =
  22. 22.Digital root of 75 × 36 =
  23. 23.Digital root of 18 × 82 =
  24. 24.Digital root of 22 × 12 =
  25. 25.Digital root of 15217 =
  26. 26.Digital root of 26 × 85 =
  27. 27.Digital root of 80385 =
  28. 28.Digital root of 23 × 26 =
  29. 29.Digital root of 51 × 98 =
  30. 30.Digital root of 24 × 47 =
  31. 31.Digital root of 80 × 45 =
  32. 32.Digital root of 57 × 82 =
  33. 33.Digital root of 65 × 69 =
  34. 34.Digital root of 59284 =
  35. 35.Digital root of 56592 =
  36. 36.Digital root of 5888 =
  37. 37.Digital root of 4157 =
  38. 38.Digital root of 76 × 75 =
  39. 39.Digital root of 93395 =
  40. 40.Digital root of 22922 =

Answer key

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

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